I can see the argument that Meta wants to kill the fediverse but I am kinda excited that we could possibly still get content from feeds that would not consider a mastodon account, even if that is a disagreeable attitude. Looking at Threads it already looks like brands “autosport, financial times” etc have setup regular posting schedules on threads so it really could be the Twitter killer.
I’d assume they would provide a backup from before the announcement for the training.