I first noticed when I was trying to do legendary island on warrior that none of the mobs have knockback immunity. Now this wouldn't be a problem for most classes but for warrior, a reasonably fast cycle that involves war scream ends up gravitating enemies above your head, knocking them higher and higher which greatly reduces your damage. War scream does have a mob pulling effect listed in its description but it doesn't mention that it also knocks enemies straight up by over a block.
Also for some reason the final phase of the eye boss in EO has no knockback immunity even though it was reworked recently in rekindled world and can get air juggled.