My understanding of Alioth's policy was based on a rejection notice I received a while ago:
> looking at the description of your project request, it's not clear at all that you need a
full Alioth project to effectively co-maintain your package.
(This rejection was quite justified, IMO.)
From this I understood that Alioth doesn't accept "it's a Debian package" as the sole basis
for hosting a package. It was this that I referred to in my initial comment on the article.
I suppose that, although the above rejection notice doesn't mention Alioth's 'collab-maint'
project, it doesn't exclude the possibility either.