I'm afraid that my opinion is that apps whose developers have "gone away" is the exact opposite of a "perfectly good app(s)" ... it's a liability that only grows over time. Keeping those abandonware apps running in VMs is a perfectly good solution, if only Apple wasn't so opposed to supporting VMs.
This is just as radical as any other API change. And Apple closing the door on 32-bit should surprise no-one at this point. Software development is a treadmill, not a monument.

And it's one of the more fair taxes. It's progressive, and it's entirely on unearned income. If you think your forbears' money is yours by rights with no costs, you're a greedy dick.

Rogue, not rouge. It's not wearing makeup.