That’s very concerning! Sounds eerily similar to how Google killed XMPP back in the day. Honestly we probably shouldn’t allow any federation with them to stay safe.
There was a really good writeup I saw recently either here in Lemmy or on Hacker News somewhere, can’t seem to find it. In short though, Google adopted the decentralized standard, built it into Gmail so everyone uses their client, then eventually dropped support for talking with other XMPP clients.