Earlier quoted context omitted.
That is just Ubuntu doing Ubuntu things. Like most of their other endeavors, like Upstart or Unity, they will eventually get bored with snap and adopt the most common tool instead.
Just to be clear, Canonical are often the first ones with a solution to a problem (Unity, Mir, Upstart, Snap, LXD predate alternatives trying to solve the same problems existing in existing software), they just usually use the ensuing "war" for adoption due to varying degrees of bad strategy, Red Hat being more popular, poor technical choices or just bad luck.
Here's Mark Shuttleworth in 2010:
The next major transition for Unity will be to deliver it on Wayland, the OpenGL-based display management system.
We came to the conclusion that any such effort would only create a hard split in the world which wasn’t worth the cost of having done it. There are issues with Wayland, but they seem to be solvable, we’d rather be part of solving them than chasing a better alternative. So Wayland it is.
https://www.markshuttleworth.com/archives/551
Then in 2013, Unity 8 was released with Mir.
Snap was largely developed in parallel with FlatPak (called xdg-app initially).
There was a talk about the plans at GUADEC 2013:
https://www.superlectures.com/guadec2013/sandboxed-applicati...