If you think that it is useful, you can make one and submit a pull request and we will consider it.
My belief that a snap package would be beneficial is what prompted the proposal. However, what I believe isn't important. I've never built a snap package and don't want to unless you guys reasonably believe that doing so would be beneficial. Does the development team and the general userbase believe that migrating to the new package format would be beneficial?
From memory, my understanding is that no debian armory package exists because because of debian's politics with respect to updating Armory. Instead of just having a debian package and circumventing debian's packaging politics, we can also have a package that works on all major distros.
Firefox, VLC, Docker, and others are migrating to this package format.