Low Page's Threaten not as effective as before

Description of the bug: (optional screenshot/video): Before the last maintenance, the Page's skill Threaten was able to help your character tank hits. For example, when the enemy's attack was reduced, a 700 touch damage may be reduced to 400, 200 to 12ish, etc. I can't really think of other examples. How when I use threaten, it is nowhere near as effective, maybe going from 300 to 245, or 750 to 698, etc. It is a meaningless skill.
What is supposed to happen?: Threaten was far more effective before. Did something happen?
Where did you find and/or notice this bug?: By playing my White Knight and realising I could no longer tank hits with Threaten and it eats up my potions.
A step-by-step guide to re-producing this bug (optional): Cast Threaten as Page/White Knight/Paladin on normal mobs to see.
Extra information (optional):

 

What kind of bugs were associated with Threaten? Also if this is the default efficacy then it's really not worth keybinding at all for a skill that's supposed to be our "identity". Any moderators have an actual feedback to confirm or deny this?

 

Is it possible to backport later editions of Threaten to v62? If that is what happened, then it is interesting and a pretty good thing for the higher level paladins. However, it's weird to do this stealthily without saying a word about it.