That would mean our GMs having to judge each case by hearing both sides (which could be lying), analyzing the (probably lack of) evidence, and then make a call on whether it was justified or not, more than likely blindly when there isn't and doubtfully would ever be any rule listing requirements to kick someone - if you say something they don't like, they can kick you, and that's a reality you willingly accept when you hand over the responsibility for your lockouts.
I don't see that ever happening with the ratio players:GMs we have (does even retail, with their vast amount of resources and much larger GM pool, do anything like that?). If people for some reason are incapable of starting even a party properly, they should probably join a guild or only take part in trustworthy parties and raids instead.