This doesn't work quite well - if I scroll fast enough, my browser (Chrome) thinks I've finished scrolling and goes back to scrolling the screen. As a fan of scanning through data extremely quickly, it's a very annoying interface.
Which kinda makes me think that that particular example, while very cool, is not actually worthwhile. I mean... whats the usecase of being able to scroll through a table with 1000000 rows? I mean... what are you even doing/looking for when you're scanning through tabular data quickly? Wouldn't it be far better to just search or have the data visualized or filtered in a meaningful way?
oftentimes when i'm searching through large datasets it's not for a particular reason - if i have a very large dataset whose contents is fairly ambiguous, my first step is to get acquainted with it. i like to do that by just check random rows, seeing if there are any patterns in the data, or something else that might spark my mind towards how i want to use the data