I think the game was beta-tested, but I'm not sure about the patches. I can understand why the devs don't want to delay a patch that players are clamoring for to give someone time to do a complete play-through... but I think it's worth it, since otherwise you get this endless cycle of patching the patches. Just my two cents <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> I was a beta-tester for the patches for another game, and we found plenty of game-breaking bugs that would have been shipped if we hadn't been there. (A few were shipped even though we'd reported them, but that's another story <img src="/ubbthreads/images/graemlins/winkwink.gif" alt="" /> )
Another note on the battlefield bug: did a bit of testing when I found the battlefield 2 key in act 3. I was able to enter the battlefield once, do some trading with Annabelle, get her quest, and return. When I went back and traded with the other merchants and got their quests, I couldn't return. So it didn't kick in right away. Hadn't visited a dungeon in either game though.