The downside, I guess, to Mastodon finally adapting to users would be that that likely steers it further into being a copy of an existing site.
Which has always been the awkward elephant in the room: the trope of "all FOSS does is copy other people's ideas after they're successful".
People have had a lot of concepts for OTHER things federated protocols could do and functionality they could enable, but nobody ever prioritized that. They argued about blocklists and the word "toot" instead.