Low Dark Knight's Beholder Aura doesn't properly reflect damage to bosses

Description of the bug: (optional screenshot/video):Here is the @dpm 50 I get while using my DK as a sed mule in Horntail. He made 0 attacks and had Beholder up the entire fight, netting a total of 1667 damage for 33 damage per minute. The best theory for there being any damage is that he got tagged by a wyvern at some point, as the repeated @dpm 5 tests I did in preheads yielded 0 damage.

What is supposed to happen?:

Where did you find and/or notice this bug?:My one true love, Horntail's cave
A step-by-step guide to re-producing this bug (optional):do @dpm's without attacking on bosses
Extra information (optional):
J>HT 33 dpm DK

 

Even just ignoring the rework quote saying it's both, I don't understand what role it plays in reflecting touch damage. I can't really think of a use case beyond the single point weakening knockback. 24 points gets you an added 120k dpm to CWKPQ, or roughly a .5-.8% dps increase, but even then that doesn't actually matter if it's not going into the target who dies last. I don't think there's even a world where the damage does anything for farming mobs, everything you'll want to kill as a DK is already a 1ko and there's no real chance it'll chip enough off of a 7f golem to make a valid increase in exp/hr.

The one good part of the skill seems like it was either overlooked in mentioning in the balance post or a complete accident. The single point makes it a great skill, while the remaining 24 points is on the tier of Final Attack or Shield Mastery in terms of effectiveness. I just don't understand why the skill exists if it's given such a minuscule niche as to warrant players invest more into 3rd job skills instead of going anywhere near it. Being all damage is the only sensible way to make it into a mediocre skill with some small niche instead of just dogwater.