I think the reality of it is that there are many ways to make a great game, you have to ask yourself to what end is the process driving for? DAI actually could've been better with a smaller scope, so it's not always about content production and brute force mass production - sometimes it's just about creatively fitting the pieces together as efficiently as possible.
I agree and that is my point to. Most publishers are more/only interested in making a profitable game rather than a great game. Most publishers drives studios to make games that will be more appealing to more people with no interest of making that game great or good. They are more interested in making the sales.
Yes, DAI would probably be tighter and better if they made it slightly smaller in scale. However that might also mean less marketing gimmick and less possible customers which ultimately means less possible profit. The evidence is very clear in the case of Bioware. See how all the changes since DAO is aimed at making the game less hardcore and more mainstream? Trying to please everyone with a hybrid action/tactical combat that ended up not pleasing the die hard fans of both camps?
Reality is: A good game does not always sell well. Call of Duty for instance, that cut and paste piece of annual milking is worse than many good games but it sure is out selling them by a lot.
Profit and only profit unfortunately is the only drive for most huge publishers and that is the simplest of reality.
So to answer your question: Big publishers are NOT interested in making good games. They want PROFIT and only PROFIT. It is every big publisher's dream to make games like Call of Duty. That is what the end process is driving for - Profit and DLC profit and online micro transaction profit.