no because it doesnt create clean little islands, sadly.. it creates fractured threads where everyone is talking and you cant see half the messages, and the messages you cant see are different than what someone else can see. It drives people to ultimately smaller and smaller islands.
The problem lies int he viral nature of the defederating... the current peer pressure is such that every server demands every other server block the same people they do, meanwhile each server has a different block list. When this plays out to completion everyone is forced into small niche islands and there is no fediverse, if you try to participate in a larger fediverse you are kicked out of even your small island, so no fediverse can exist by that point... it is headed there fast.