Like all you would have to do to, perhaps not fix, but heavily mitigate this, would be to have YouTube just... hold onto the revenue until the dispute is resolved. It's barely even a change. And most of the time, when creators do counter the claims, they're eventually dropped but again because of how that system works, YouTube has already funneled all their money to the claimant, irrespective of the determined validity of the claim. And it would discourage bullshit claims because even as low-rent a scam as this is, it is some amount of work, and if there's no payout, you necessarily reduce the number of scammers who will attempt it.
I don't know if that's a DMCA thing, I admittedly haven't researched it in a long time, but I don't see how that would put YouTube at any kind of liability. Any reader, do feel free to correct me.