Copyright law isn’t written to be reasonable. It doesn’t matter if the rightsholder wrote a song 65 years ago and hasn’t made money selling it for decades, it’s protected for the lifetime of the author plus 70 years. I’m sure everyone who comments on this would agree that’s far too long, but it doesn’t matter what we think. We could spend all day coming up with better ideas for how this could work, but the RIAA have no desire to budge on this at all, and there isn’t enough political will to overturn the current laws (all republicans and some democrats would oppose any attempt to do so).