Yes, probably because I stick with Arch and Slackware plus a lightweight environment. The only time I saw such a GUI was when I tried out Elementary just for fun.

What I consider a problem is that the user can simply dismiss or disregard the updates notification indefinitely. I know many non-tech-savvy people who do not understand the importance of updates, so they would be inclined to do exactly that. That is why unattended upgrades are probably a better option in such cases.