I apologize for this not being properly documented. Canonical-owned snaps should have a reasonable commitment to maintenance (looks OK given they have relatively large collaborator lists), but we also ask that they are stable and have proper metadata so they also present adequately in snapcraft.io, given that they will be associated with Canonical’s name.
To that end, crucially, none of these snaps have stable-channel releases (and some have no builds at all - how do you even know that the packaged software works well as a snap?). I would request that you properly test your snap builds and get them to a point where you’re comfortable doing a stable release for each of them. Once that’s done, let me know and we can transfer to the Canonical account.
Additionally, it’d be great if the descriptions could be tidied up a bit, some of them are very spartan and are not nicely formatted, but I don’t consider that a deal-breaker.