While on a personal level I disagree with all of these items, I also have to question the validity of some of the items on this list. Cheese fondue? Really? While people may not like making it, I don't know of anyone, except those that are lactose intolerant, that doesn't love it. Garlic? Come on!! In my time cooking for people I have a lot more requests for no onion than for no garlic. And celery? While most people may not love it, I don't think there are that many people that hate it. I think most people are more apathetic towards it than anything. The rest of the list I would probably agree with, although not necessarily for the reasons listed on the video. And when I say "agree with" I don't mean that I hate them also, but that I would agree that these are pretty hated foods by lots of people.
Upon further reflection, I would also question a few more of these items, not because I don't believe that many people hate them, but because I think there are more hated foods out there; broccoli, eggplant, liver (and organ meats in general), artichokes, and fish are but a few that I think could knock off a few on the list above.