I also read scripts from the user repositories on my distro. It’s perfectly pragmatic for us because we understand shell scripts and system administration. It makes me feel better too. But I would never tell someone to avoid installing developer tooling simply because it pipes curl to bash. It’s not pragmatic to tell a new developer they need to learn to be a sysadmin before installing homebrew.
That's a strawman though. Nobody wants to tell that to new developers. This is all about conventions and normalizing bad behaviors. New developers should avoid piping curl to bash and explicitly download files instead because when they eventually will become experienced enough to inspect those files they will start doing it naturally.
Good practices are rarely black and white, they're often there to influence how you think about stuff and what habits you develop.
