Earlier quoted context omitted.
This highlights the bigger issue of web developers and designers only working on the latest and greatest hardware with the fastest performance and the best user experience. Their users may not have access to the same hardware, while developers and designers are totally blind to how their software might perform on anything but a recent model MacBook Pro or XPS.
In this case I'd say it highlights another problem too: web developers thinking it is their prerogative to control how their users scroll.
It's still janky (and buggy?) as hell on Chrome on Windows with a mouse with a scroll wheel.