I suspect that they could have chosen to go with harder, more angular, edges; which might have triggered fewer chubbiness associations; but I’d bet that the guts are fairly tightly packed. Printers are fiddly to miniaturize; and(unlike a classic Polaroid) there isn’t the fairly large chunk of space devoted to the optical elements required to neatly project what is entering the lens across the entire film area.
It looks like they at least sprang for some amount of optical zoom; but thanks to cellphones any camera module not aimed at people who prefer lenses that cost more than this camera is a pretty teeny thing; and the supporting electronics probably fit on a single PCB.