But what about all of the human users who are not bots who do in fact spend hours a day reading through content and curating, commenting, and just interacting in general to advance the platform? Now they're put in the position of either splitting their votes to an almost meaningless reward for the posters or simply decide to not upvote the content. And doesn't this reduce incentive to reward great comments as well?

The solution seems to add more complexity to the human experience while trying to resolve an issue that can probably be resolved in other ways. If bots are the target, why not introduce more bot-detecting or prevention solutions? It's not like bot accounts can't be fairly easily identified.