Pineapple and chilli is one of my favourite taste combinations on this planet… I’ll even sometimes bang some (rice or cider) vinegar in there for a hot-sweet-sour flavour.
In my experience if you throw pineapple in a blender before adding it to the sauce almost everybody loves the flavour profile - even the pineapple haters. Go figure.
The use of sweetness in chili to both enhance and control spice is pretty bog standard. Use of acids is too. And topping it with things is another very common way to enjoy the dish.
Tomato is a freaking fruit, botanically, and nobody would complain about a nice salsa on top of chili.
People just like being food snobs because they get to feel superior with almost no effort beyond parroting things other people say.
Now, this picture does seem unbalanced. That much pineapple is going to mask any subtle flavors in the chili, and that's not how I would enjoy it. That being said, if someone dislikes chili, this would be a great way to mask the flavors lol.
But in smaller amounts? You'd get this sweet/sour/moist burst in among bites. Nothing wrong with that at all
Edit: the food snobbery part wasn't directed at anyone specific, just a general comment on how folks will see some unusual food combo and start in on things.
Ahhh, now that's disgusting. No way in hell I'd trust that, no matter how perfectly refrigerated it was. Frozen yeah, but you wouldn't have given the age if it had been frozen.