Moving will be made to interrupt spellcasting at a point in time...

[ArtEmisPalmecia]

Actually in the exact middle of it, there is four plumes that go off..

Really? Ok, now I'm convinced your grasping at straws, as you completely ignore Eruption in your post, and the fact that the new battles seem to favor static positions throughout the battle, while pre-1.21 battles focus on making you move and act.