I think there's still a silver lining, I'm sure the second it's opened up (at the protocol level not registrations) it'll be bridged in. Given I'm on Nostr replying to ActivityPub, I think more protocols that interact with each other brings a lot of value across the board and if some people prefer AT (for the protocol's technical side or just because of BlueSky) it won't lead to fragmentation like in a centralized platform.