[Trystych]

The biggest issue with push that will become extremely important in velious is that you can push mobs into walls. At present with 32k hp max it isn't such a huge deal but in future it will be when you try to put your back in a corner for say Avatar of War and your raid pushes it through you and then the wall.

Edit: Even now PCs can get summoned into walls by NPCs where it basically becomes impossible to get them out, once something with a large hitbox starts summoning you can't distance it fast enough before the ability to summon refreshes.