Why would you say that? Most people haven't even heard of him.
I'd never heard of him until he took over Gibson. I simply remember the articles on him that then appeared in magazines like Fortune and in newspapers like the Wall Street Journal. If any of the articles found someone with something favorable to say about him, I don't remember it.
I give him credit for rescuing Gibson's quality . . . and for running a bunch of small music stores out of business by his unreasonable demands about how much they were required to spend with Gibson to remain a Gibson dealer. Once he had Sam Ash, Musician's Friend, and Guitar Center, he didn't care about anyone else.