While unfortunate, I see no difference with the clearnet.

One might even see it as positive, because it forces maintenance. Anyone still linking to v2 addresses clearly is letting things rot. Nobody should ever assume that content available under a certain URL will be there forever, after all, even if the domain stays valid and existant.

It's not that some URLs change over time. It's that ALL URLS EVER suddenly stopped working all at the same exact time. This was the wholesale destruction of everything built on that darkweb. Nothing like it has ever happened to the clearnet web and nothing ever will. It is likely to happen again on Tor. And that is what I am warning about.