You are right, except for one detail. Package managers almost always validate the packages using digital signatures, to avoid man-in-the-middle attacks. You don’t need to trust the network anymore. Shell scripts piped to a shell don’t have that protection. You still have to trust the developers and maintainers, though.
No matter how they package it, running a binary downloaded from Internet has the same attack surface
You are right, except for one detail. Package managers almost always validate the packages using digital signatures, to avoid man-in-the-middle attacks. You don’t need to trust the network anymore. Shell scripts piped to a shell don’t have that protection. You still have to trust the developers and maintainers, though.