The problems with this are more societal ones than technical or practical: It is impossible, for example, to install most popular apps for macOS without identifying yourself to Apple (and by extension the US government and military intelligence). You can't use the App Store (even for free apps) without an Apple ID, and you can't get an Apple ID without a phone number. (In many countries, you can't get a phone number without a government ID.)
Similarly, if you wish to publish apps widely, you can do so with unsigned ones, but users won't ever figure out how to run those.[1] If you want your app to be widely used, you must ID yourself to Apple, who can deny/censor at will (or under state (or Hollywood) compulsion).
It builds a world in which it is impossible to easily build or distribute tools that the state really doesn't want distributed or used, because Apple is too large to deny them their demands.
I think the phrase used is "turnkey tyranny".
Anonymous publishing is essential to the preservation of a free society.
Imagine if there were one company who could remotely disable printing presses, or televisions/radios.
For those of you who aren't yet worried about this possibility of state compulsion, I ask you this: Dubya is to Trump as Trump is to x? It's not a matter of if these remote censorship tools built by Apple will be used to abuse human rights en masse, but instead a matter of when. Apple is already compromising their crypto due to requests (not compulsion) from the federal police—today.
[1]: https://lapcatsoftware.com/articles/unsigned.html