Every change really does break someone's workflow https://xkcd.com/1172/
Counter-argument against exempting the demo page: https://news.ycombinator.com/item?id=43237672
Counter-argument against exempting the demo page: https://news.ycombinator.com/item?id=43237672
I really don't think that's a counter-argument for exempting the demo. It's an argument against ever implementing this feature on an actual website. Or, an argument for using the prefers-reduced-motion check on an actual website.
Some of them are incredibly hilarious, but the author is just way too productive.