@BeAware@social.beaware.live their system gives users much MORE control, not less, since users are at the center.
Users get more control over their content, more control over how it's distributed, and where they get content from, and how it's presented to them from different aggregation sources.
It sounds like you're really focused on domain names and user handles, but a huge part of the BlueSky approach is to not make such things so important in the first place.
In ActivityPub a user is defined by the instance, so that stuff matters a whole lot.
In BlueSky they specifically didn't want to do that sort of thing, making users more independent of instances in the first place