I know exactly what you're talking about, as I'm actually a dev here.
I'm just saying we aren't going to support any distro repos, yet, because of the complexity involved in supporting all of them. We provide one, we're expected to provide all.
Once we're in a better position to support the more complex distros, we'll definitely add Arch to that list, but until then, the only supported method of distribution is our website.
I'm sorry for any inconvenience this may cause.