Like when the tank tanks Ravana near the wall and he destroys it and then gets knocked off by the first Tapasya hit that you can't dodgeAlso, Ravana losing the walls in Ravana's walls before a certain point in that fight is almost a guaranteed wipe, but so long as some walls remain the knock-back mechanic in that fight isn't a significant factor.
I think people are more likely to be flung out in Bismark then Ravana.