I think for me the tartness of pineapple combined with the acidity of tomatoes, is too reminiscent of the flavor profile of bile. It tastes like I threw up a little in my mouth, which is not something I desire to pay for, chew, savor, or swallow.
Pineapple is fine, but I wouldn't go out of my way for it. It's the tomato juice that makes this sound truly vile. Also who cares which side of the pizza you bite into?
I mean the correct order is the tip with a bite of the crust from one side, then continue to go along that side biting a piece of the crust along with the base pizza. Unless you have something like curry on the side, then you can just not eat the crust at all and use it as breadsticks for the curry.
I'm confused by this comic, because she's literally eating it crust first, which is not the side. And crust first is a 100% qualified way to eat pizza.