I didn't say you shouldn't use that one for applications.
What I said was actually this:
So it's just a matter of making it clear that it is maintained by a team at Canonical (and will continue to be) and having some information available so we can tell which snaps those are and what is the maintenance plan, ideally here in the forum.
With that said, part of the point of that particular content interface on gnome-3-24 as I understand it is being a base for other snaps to rely upon, so being able to auto-connect it sounds interesting nevertheless. The point above by @daniel already shows that being desired.
I'd like to thread carefully while doing that though, only because this is the first time we'll be opening up that specific door, which means we have very little experience with that sort of interface being public so far. To that end, can you respond to @jdstrand's question above in a bit more detail:
From the name of the snap and its interface, it doesn't look like that was accounted for. In particular, that snap and interface are globally visible, not only across multiple distributions but also across multiple versions of those which will span several years. What happens when there are ABI breakages that take place because not Gnome itself but the underlying infrastructure changed? How should one pick the right "gnome-3-24" snap and interface?