I see specific classes on the page that specify a one degree angle, so it seems to be intentional. I would guess it's to call your attention to the cells.
The first real movies made 100 years ago looked like something someone today could put together in their garage on a shoestring budget. AI-generated movies have existed for just two years, and are only going to get better. This is bleeding edge research, and I haven't seen any sign yet of AI models hitting a quality ceiling.