I can't think of a single sandbox RPG that wasn't buggy at release. FO3, Oblivion and even Morrowind all had issues at release. Couple that with the fact there are A LOT of people enjoying NV without issues would lead me to believe it is impossible to label this as the most bug ridden release. The most vocal are the ones with issues while all those that aren't having problems are too busy playing to comment on the current state of the game.
Granted.... I am not particularly singling NV out in the bugs-at-release category, save to say it is one of the worst I have encountered in recent times. In fact you've kind of underlined my point in that we almost expect video games to be unstable at release. I feel somewhat that the ability of consoles in particular to live-update has allowed a certain level of complacency about release stability to creep in. And it seems to be largely accepted and even excused.
I can't hold with that. I do, in fact, think its outrageous.
My personal beef with NV is simple.... I would love to enjoy playing it but the game won't run for long enough for me to achieve anything approaching immersion, which is the whole point of an RPG in my world.
I disagree with your point about the state of NV simply because if you were right, this patch we're waiting for would not be necessary. If it works for you, great, you're lucky but far from being in the majority.