Bugs are one thing, sloppiness is something entirely different. FNV was supposedly horribly bugged. Never tried it before the first patch and didn't really have any problems. I'd say it's likely that millions of other gamers were cool with the situation as well, as the game received pretty much universal praise. Overall, I think FNV was good for Obsidian's reputation. The people complaining are those that can't accept that Obsidian beat Bethesda at their own game 
However, I'd have a harder time excusing the unfinished release of KotOR 2 and the extreme lack of polish in Alpha Protocol. AP was basically the definition of wasted potential.

However, I'd have a harder time excusing the unfinished release of KotOR 2 and the extreme lack of polish in Alpha Protocol. AP was basically the definition of wasted potential.