Apples and oranges.

Package managers only install a package with defaults. These helper scripts are designed to take the user through a final config that isn’t provided by the package defaults.

Whether there’s a setup wizard doesn’t have anything to do with whether the tool comes from a package manager or not. Run “apt install ddclient”, for example, it’ll immediately guide you through all configuration steps for the program instead of just dumping a binary and some config text files in /etc/.

So that’s not the bottleneck or contradiction here. It’s just very unfortunate that setup wizards are not very popular as soon as you leave Windows and OSX ecosystems.