You missed the essence of my argument. The curl approach serves as an example of some less trustworthy, unvetted ways of installing software, similar to downloading an installer or apk from some random website.

Is it a bad idea? Maybe, especially if you're not technically versed. Does that mean we should take everyone's freedom to make their own choices. "because we know what's best for you"? I don't think so.

I believe that most non-technical users are self-aware enough that they stick to curated app-stores of their own volition.