Nothing wrong with being passionate about food. It's a good thing. We eat more than we have sex or play music, and plenty of people get passionate about those.
Like sex, though, I'd rather do than watch. Gastroporn is an empty experience. I do wonder if it really does make the viewer think twice about where his or her food is coming from and how it's cooked. Most people seem content to eat crap, judging from the trollies I see being wheeled around supermarkets.
For me, food is one of the joys of life and I love sourcing it, cooking it and eating it.