@Rook. No, I think you're right.
Someone did mention that Blitz takes the collision data from the first frame only, so an animation does not change the collision calculations; whereas if you manually rotate the whole thing, then collisions are recalced.
Someone did mention that Blitz takes the collision data from the first frame only, so an animation does not change the collision calculations; whereas if you manually rotate the whole thing, then collisions are recalced.