I watched the video in the link above. I get what you are saying. Maybe he is just too set in his ways. That's what people used to say about bachelors many years ago! lol If you weren't married by age 30, you were considered odd and too set in your ways to live with someone else or to change.
I can sort of understand where he is coming from though. It may not be good for his tv show, though. lol
I don't consider myself a picky eater, but I can sort of relate to Anderson in that I am not a person who likes extras with food. For example, I'm fine with a hamburger and no cheese. I never want extra sause or dressing. Just a little on the side is all I care for. I don't want a bunch of ingredients on my potatoes, but just one. I don't like much salt or ketchup either. And only a few crackers with my soup. No or little steak sauce for me. I'm not sure why I'm like that. I think it develops in childhood. HOWEVER, I'm not picky about what I will eat. I will eat just about any meat, fruit, vegetable, or grain. The only things I really don't like to eat are thousand island salad dressing and licorice. lol