You can control when to update,
https://snapcraft.io/docs/keeping-snaps-up-to-date
The argument about "latest == safest" may have some validity when it comes to browsers, but for everything else a notification that there is a new version would be more than enough.
Taking a leaf right out of Microsoft's book, I see.
Although apparently they are considering[2] adding the option to disable auto-updates.
[1] https://news.ycombinator.com/item?id=22972661 [2] https://forum.snapcraft.io/t/re-visiting-update-control-on-t...