Fingers already don't have much precision when tapping. It's even worse when hovering, so hover states on your DOM elements are likely not to work in a useful w

Fingers already don't have much precision when tapping. It's even worse when hovering, so hover states on your DOM elements are likely not to work in a useful way. And then just imagine a menu that opens on hover suddenly obscuring the whole site. I'd rather take just the highlight of links in the browser as shown in the video than trying to adapt touch screens back to interfaces that were meant to be used with much higher-precision pointing devices.