Removing polestagger would be like taking away a toy from a child ->
I bet Tor or Chase would still beat the crap out of us all without polestagger the same way they do now. But the problem is every polearm user who is not as skilled as those two can't play without it, so they don't want to have their toy taken away.
I think it would be a good idea to
remove polestagger completely, while
replacing the stab animation of greatswords with the one of polearms, because stab with greatswords is terribly OP as well and not really realistic (it looks as if the sword should fall from your hands while stabbing). I think that would please both two-handers and "polestaggers".