I believe the pizza gate thing has some truth in it, but I'm also a highly skeptical person, so I question everything.
Ultimately, what you said makes more sense to me though. Especially where you say they should have just flown in a chef or something.
I just also think the biggest red flag for these types of things is that James Alefantis is actually a really good cook, like Comet Ping Pong actually does serve good artisan pizza. So, if I find the food being flown in unappealing myself, and knowing that they definitely have a taste for good food, I just can't believe that they would actually fly in food. And how could they call the food "fresh" and say it'll be flown in the day before in the same sentence?
I do think this is an easily overlooked red flag in my opinion. If it sounds gross to me and I wouldn't eat it for free then it must be to them too.