Yeah Blue Sky is run by people (like Jay Graber, a hard-core leftist) who secretly want to keep Blue Sky centralized, and only pretend it's Federated, to get the ActivityPub devs to jump ship and to go ATProto. You're right. They got corrupted by power and politics. Nostr is much better and simpler, although it's lead developer is quite childish and I found him quite intolerable as a human.