The whole claimed point of ATProto is to avoid stuff like this. If centralization isn't a problem, just use GitHub, or X, because platforms that don't try to decentralize work better.

Atproto gives users choice for where their data is hosted as well as the ability to migrate their data to a new host. Users who dont want to put trust in a provider can host it themselves. How is that not an improvement over being locked in to a single centralized provider?

If you assume that Bluesky won't suddenly turn hostile (we'll get some warning) then being able to migrate your PDS is better than what X gives you and about the same as being able to move your git repo off of GitHub.