That was the quickstart version—it's just being pragmatic. The alternative is to audit the setup script yourself, which is easy enough to do. You'd do the same

That was the quickstart version—it's just being pragmatic. The alternative is to audit the setup script yourself, which is easy enough to do. You'd do the same for a tarball right? If you trust the author and want to get started quicky it makes a lot of sense to simplify the install process to a one liner.