One of the best parts of this - especially if the trend continues - is that it makes the “Extinguish” part of a possible “Embrace, Expand, Extinguish” attack by Meta’s Threads more difficult.
Cutting off access to a bunch of tiny self-hosted private instances won’t even ping on their radar. But cutting off federation with official government platforms? That’s different.
You could always message an admin and ask them to transfer the account to you.