I think Fazio is like many architects that take on more projects than they can personally manage. When you cannot be at every location personally overseeing the project, history tells us that these designs become more of a "signature" form course, than a unique design that will stand the test of time. I honestly don't blame any architect for getting to this point. Fazio and other architects employ a number of people and feel responsible for their financial livelihood. As a result, their first priority is an obligation to these people. If you provide the personal service to each project, you sacrifice your wife and family. I am sure that these are tough calls for anyone.
By all accounts, Fazio at his best is really good. Even amongst the minimalists on this board, I have not read many criticisms of Shadow Creek, Wade Hampton, Victoria National, Alotian, Gozzer Ranch and Shooting Star.
I think some of Fazio courses (where he probably designed from a topo map) are "form" designs that are good, not great, and somewhat bland - - looking a lot alike many other courses that he designed. For instance, in northeast Ohio, he designed Sand Ridge and Firestone West. Both are good golf courses that I enjoy playing, but neither is unique or really special.
However, I think architects are judged in history by their best designs, not by the totality of their designs. There are plently of normal Ross designs that we easily discard and judge him on his gems. Same with Stanley Thompson and Tillinghast. Not sure this applies to Mackenzie or Macdonald. However, only George Crump is batting a 1000.