Don't take his words too seriously. There was this whole Canon Mark III thing, and he did get Canon to fix issues and it is fixed and done with, but he still slaps it down. I wouldn't trust his knowledge with high end computers, cameras on the other hand .... maybe.
geez, is it possible that a professional photographer might know something about color reproduction.....I too do not trust his knowledge of hardware, but he just might know something about screens...