I don’t know where you get this idea, at least about Scott. He has written extensively about flaws in science and misuse of statistics. My favorite is the one where he cries at the end “ Science! YOU WERE THE CHOSEN ONE! It was said that you would destroy reliance on biased experts, not join them!”
https://slatestarcodex.com/2014/04/28/the-control-group-is-o...
The fast pocket computer might be fairly common in fully developed countries, but bandwidth is not. It’s trivial to run into use cases with limited network bandwidth regardless of how fast your iPhone is.
And if you broaden your idea of your user base a bit, even the fast computers aren’t ubiquitous. Try using a low end Android phone sometime, or a hand me down iOS device still on iOS 12.