You have this exactly backwards.
Going root and custom ROM is *more* stable -- as we saw with DL09, our devs put out not only an earlier and unbloated package, but one that didn't bork SD card mounting. And you don't end up having to wait because somebody will always upload a deodexed OTA before or the day of any actual update.
You see it every time: poor sods jumping through hoops to put themselves back to stock to get an "official" version of a ROM that you could Clockwork in with more security. And *every time* you get some folks getting bricked (or semi-bricked, because people this happens to don't generally know about assembling a jig) because of whatever magic sauce was in the exact same update coming from Verizon, or T-Mo, or Rogers instead of xda.