It's okay if Legal does that. The idea isn't to prevent companies from owning copyrighted works long-term, it's to prevent the waste of abandoned works. There are thousands, if not millions, of works that could be cleanly reused under my proposal.

I don't disagree with the spirit of your argument. I'm just saying that my proposal would be a lot easier to put in practice than anything that hurts companies. The strength of the proposal is exactly that companies will mostly shrug while creating a very clear legal separation of what's "active copyright" and what's an "abandoned work".

By the way, this would also apply to the GPL (and other copyleft licenses).