I think the Hugos were doomed when the SJWs began advocating Correct Thought over Good Writing, and began persecuting dissenters. The Puppy slate is purely reactionary. Now that the Hugos have been politicized, there's no going back.
Putting rules in place won't solve the problem, it will just shift the sociopolitical slapfight to the arena of which rules are most advantageous to which faction.
Unless there's a Worldcon Ur-Faction that can step in; make it absolutely clear that electioneering is not allowed, that Good Writing is the only criteria, and that members should vote their conscience no more no less; and somehow enforce this; the Hugos are pointless now, except as a measure of e-peen for whichever faction happens to have the upper hand in the slap fight that year.
Anyway, I often use the prestigious awards as a way to deal with Sturgeon's Law: 99% of Science Fiction is crap, but if something has won a Hugo it's probably in the other 1%. But now... whether the voting is done according to SJW principles or a reactionary anti-SJW slate, either way it's of no use to me anymore. I guess maybe 99% of Sci-Fi awards are also crap.