Sure, in a perfect world, one could launch and forget when it comes to updates. Unfortunately, we don't have that luxury with VL.
Most of the larger distributions have hundreds of testers. When something gets announced in the forum here, we have what? 2 or 3 who actually take the time to install and test something? And even then, there are things uploaded to the repo and there's nary a peep out of anyone to say if they tested or not. And unless it's something I use, I rarely test an item out. Especially on my SOHO installation which is what I use most often when I boot my system.
I learned a LONG time ago never to mark everything and update. Even with the larger distributions like Mint, this can break something. Especially if you've gone out and installed a few things on your own.
I've often thought that we shouldn't toss updates into the repository unless it's a security update or a definite performance enhancement. We just don't have the number of folks necessary to really test updates for every single item that gets packaged. Perhaps we need an area other than testing where things can be shuffled off to and held until needed for a version update of VL. We don't need to ensure that the latest and greatest is always available. What we do need to ensure is a rock solid distro doesn't break if someone does do a "select all" in gslapt. And with the existing manpower, that's just not possible.