Quite the cock-up on Youtube's part, intentional or not, and another addition to Youtube's list of mistakes for 2019. Not a great end to the year for them, and certainly not for those content creators that had lost days worth of revenue (did Youtube even reimburse them? ).
In any case, decentralised platforms are always ready to take more people if mainstream apps like YouTube aren't willing to accept them.
I haven't read anything that says they did reimburse anyone, but I would be shocked if they did.
Neither did I find any news on that. While I do hope for it, I don't think they would've reimbursed anyone, knowing YouTube.