Consumers have different standards, I'd wager. It's clear any time you plug into a game community that some people really expect and demand a bug free experience and if they don't get it they feel ripped off and abused. Some people are more used to the errors that crop up through game development and are more patient with the unavoidable bugs.
There aren't -any- games that are bug free that i've ever found ever but that is apparently not the experience some people have had and instead the games they've experienced with bugs make them feel like they've been ripped off.
AKA first world problems. Overreacting as usual.