I agree, but the economics currently don't favor YouTube caring enough to solve this sort of problem
In fact, everything aligns to incentivize them not to care: making the barrier to make a successful claim higher and the larger rights-holders start to cause problems; the cost of seriously adjudicating claims is substantial and may well be unsustainable.
The consequences of bad policy are also quite low for them: most channels that will get hit unjustly have too small an audience to be heard; fixing problems for the larger creators is one-off enough that it's simply cost efficient to squash those when they happen; any bad publicity doesn't seem to be sufficient enough to cause a siginficant drop in either viewers or content creators willing to stick with the platform.... in fact I expect most content creators so unjustly hit this way would simply swallow the indignity and loss and continue p YouTube.
I don't know the laws or agreements at play here, but it seems like some sort of class action suit, if feasible, would be the only way to scale these complaints into something that YouTube management might take seriously.