I don't want to be asked about moving apps somewhere else especially for testing them. It is kind of hostile. And it's a burden for the dev to include yet more code for this. IMO, Apple should have a way to solve the issue for out-of-store apps.

(I really don't know if that many apps do this btw, I think most apps I download today are packaged in zip..)

Other users are just baffled and run apps from disk images or Downloads just because.

The authors point is that at least before 10.12 zip was a decent approach.

Too bad they aren't offering signed zip or something similar that takes same advantages that a signed dmg does..