Does The Vorpal Effect Really Work Vs ToE (in General)

I've noticed my VB when up against certain people with ToEs doesn't seem to get any larger(as if cutting through damage reduction) hits after multiple rounds.

Taken from a battle log Vs narn i chin churin:

Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [27344]
Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [20561]
Turin Turambar grazed Aether, Performing Bard with Gurthang 'The Black Sword' [207014]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [22989]
Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [18272]
Turin Turambar sliced into Aether, Performing Bard with Gurthang 'The Black Sword' [317493]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [28925]
Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [19901]
Turin Turambar swung wildly at Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [22914]
Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [24420]
Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [25869]
Turin Turambar hacked Aether, Performing Bard with Gurthang 'The Black Sword' [191230]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [19454]
Aether, Performing Bard gashed Turin Turambar with Life Sprinkler [28254]
Turin Turambar's blow was dodged by Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [21842]
Aether, Performing Bard clove Turin Turambar with Life Sprinkler [24985]
Turin Turambar mistimed his attack at Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [18504]
Aether, Performing Bard carved into Turin Turambar with Life Sprinkler [28588]
Turin Turambar carved into Aether, Performing Bard with Gurthang 'The Black Sword' [216356]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [19101]
Aether, Performing Bard sliced into Turin Turambar with Life Sprinkler [24774]
Turin Turambar hacked Aether, Performing Bard with Gurthang 'The Black Sword' [209245]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard scratched Turin Turambar with Life Sprinkler [22537]
Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [20423]
Turin Turambar mistimed his attack at Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard sliced into Turin Turambar with Life Sprinkler [28870]
Aether, Performing Bard gashed Turin Turambar with Life Sprinkler [20215]
Turin Turambar stumbled swinging at Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard clove Turin Turambar with Life Sprinkler [26826]
Aether, Performing Bard sliced into Turin Turambar with Life Sprinkler [20949]
Turin Turambar hacked Aether, Performing Bard with Gurthang 'The Black Sword' [219025]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard grazed Turin Turambar with Life Sprinkler [17371]
Aether, Performing Bard gashed Turin Turambar with Life Sprinkler [19257]
Turin Turambar's blow was dodged by Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard gashed Turin Turambar with Life Sprinkler [24412]
Aether, Performing Bard hacked Turin Turambar with Life Sprinkler [18837]
Turin Turambar's blow was dodged by Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard sliced into Turin Turambar with Life Sprinkler [23739]
Aether, Performing Bard clove Turin Turambar with Life Sprinkler [21502]
Turin Turambar carved into Aether, Performing Bard with Gurthang 'The Black Sword' [270385]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard clove Turin Turambar with Life Sprinkler [25879]
Aether, Performing Bard sliced into Turin Turambar with Life Sprinkler [23538]
Turin Turambar stumbled swinging at Aether, Performing Bard
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard clove Turin Turambar with Life Sprinkler [19187]
Aether, Performing Bard gashed Turin Turambar with Life Sprinkler [20284]
Turin Turambar sliced into Aether, Performing Bard with Gurthang 'The Black Sword' [250130]
Turin Turambar regenerated 37,000 HP

Aether, Performing Bard carved into Turin Turambar with Life Sprinkler [24470]
Aether, Performing Bard carved into Turin Turambar with Life Sprinkler [23672]
Turin Turambar's Gurthang 'The Black Sword' went snicker-snack! [230488]

Is this from my extremely small (100k vs non-ToE opponents) damage even though it's hitting over 30 times or is Endurance keeping it's level of effect?
Also please limit requests for further fightlogs i can get more but spellcheck is forcing me to put in a lot of < br > tags to keep it from being a block of text

Endurance is still effective because the damage is low. The VB halves endurance right?

But if you are doing 100k damage it doesn't make a difference versus a big ToE.

If they have 1 mil levels of Endurance, and it's halved to 500k levels of Endurance, Endurance is just as effective on your 100k Damage.

Unless I've been mistaken for a long time, the VB doesn't destroy damage reduction on its targets. It simply ignores 50% of it.

That's correct. It's only the VB's damage that ignores 50% of the damage reduction. Extra hits does not get rid of more damage reduction.

I guess someone should clarify the wiki then since "Reduces effective AC/Endurance by 50% on attack" is somewhat confusing, thanks folks.

Done.