So, most people like burgers, most people like Bioware games, therefore Bioware is McDonalds? Genius! Or utter rubbish that shows just how pointless such a comparison is. Fast food is served and prepared quickly at a low cost. A game like IWD2 is a better fit as "fast food" than any of Bio's titles. Use of a popular setting, developed at a low cost in as short amount of time as possible.
So there are no studios that produce five star games? This is nonsense. All five stars means is quality, and just because something is expensive or exotic something doesn't mean it's a quality product*. Anything and everything can be given the label five star if it's judged as being high quality.
*Although people will often confuse a high price with quality, just like gamers often confuse what they like with quality.