I think it's better for someone from the Canonical/Snap team to comment on that. I'll ask them to comment.
A new packaging format would have been great time for Linux to converge around the biggest usability+discoverability+ availability problem that the platform has. While developers need to release one binary for osx or Windows...they need to release atleast 4 for different Linux flavors.
Is there any chance that there could be convergence around the new static packaging that everyone is reinventing?