I don't know that I agree that just being heavy with product branding and trying to list interoperability as a feature really addresses the issue, but I 100% agree that "Fediverse" is an awful name.
But then, so is "world wide web". Or "Internet", for they matter. We get stuck with so many awful, awful names that sound like they were the idea of villains from a low budget 90s sci-fi tv show.