The solution is never, ever that simple. DMC is a prime example of that. Great game accoording to game reviewers and quite a few people who actually played it and bad sales to the point that we won't see a sequel (as in DMC 2).
I addressed that in my post.
And yes, of course I know making a good game isn't "simple." However, the idea of making a good game is simple. This is what I was getting at. There are some games that are clearly bad on their merits, others can be made good. Developers just need to want it enough. However, some developers settle because it's all in the word of how much their game will earn, not it's actual worth.
I would also like to point out that if reviewers think it's bad, it doesn't mean the end of the world. The market can respond well to it. This has happened many times before. Especially in some movies case. This whole argument about Metacritic becoming an issue hardly applies to a large portion of the greater market for video games. (Meaning, the people who don't check these reviews. (Meaning a larger portion of people.))