Well, we know nothing will get reverted, so time to just adapt.

All this does, is make it that we can ignore re-applying before starting a combo string.

Previously would be like, ok.... few seconds left, just tap Dread Fangs button, apply debuff, go into combo wanted, then just finish the 123 combo to get Death Rattle.

Now it's just go into combo without worrying about debuff timer. Wasn't any skill involved really, and on some bosses if didn't apply debuff before running out of mechanics, you had to re-apply it anyway. It was not a core feature of the Job imho. Just something we pressed as needed, they simply removed needing to press it to do our main Job of combo dancing.