Yeah, a friend told me it wasn't actually new, I'd just never seen it.
So, what about where Aradin kicks one of his people awake after they got hit with a sleep spell? Did I just miss that too?
Yeah, there are a few ways to wake somebody up. Using the Help action (a standard action) or attacking them, for example. Shoving them (a bonus action) counts as an attack and will wake them up, but do no damage.
They made the AI recognise this. So the AI will never take the Help action to wake their allies up, only Shove them, they've been programmed to make this more "action optimised" choice.