How is this different from all the other installation instructions asking to `curl https://foo/install.sh https://foo/install.sh | sh` or even add a custom apt/

How is this different from all the other installation instructions asking to `curl https://foo/install.sh https://foo/install.sh | sh` or even add a custom apt/rpm repo or just install a deb or rpm locally? They all might get sudo access. I do agree, but the same holds for the above methods too.