Don't know if this means much, but on my itinerary last week it said I had a snack listed for a six-ish flight in Economy from IAH to DTW. I was upgraded to 1st where we got a dinner, but as I didn't care for either choice (allergic to one and didn't like the other) I asked what they were having in coach. I was told "turkey sandwiches or ham". It might be that they consider a sandwich, chips or carrots and a candy bar to be a meal. I did get a hamburger once in economy when it had just listed "snack" on the itinerary, and it was quite filling.
The way I see it, at least they give you food. CO is great about food at mealtimes, Maybe THAT should be what they say in the video- "food" at mealtimes, not "meals" at mealtimes. Not sure, but my guess is that you'll get a burger or sandwich. Or, if you're upgraded, maybe that incredible mushroom soup! I'd trade my entree for another mushroom soup anytime!
Good Luck!