Look, I get it - it's not Twitter therefore it's a failure. And some people are ok with that, I really don't get why the need to campaign against Fediverse, it isn't killing anybody's dog.
I never said Mastodon was a failure because its not Twitter. I'm somewhat skeptical but I think the jury is still out on Mastodon. There is a lot of potential there. Part of me thinks the Fediverse is a great idea but it causes more problems than the value you get from it.