I thought this was widely known too.

My hope is SE doesn't, or perhaps cannot, fix this. It seems to be due to how the game handles using effects, where they do not apply until the end of the animation. In this case the effect is actually negative (losing DA), but it's not much different to the delay you see in something like Benediction or Hallowed Ground. They never fixed those so it'd be nice if they let it be, for once their crappy effects system is actually working for the player rather than against them.