Ah, it might make the web faster on mobile. Not very interesting.
Maybe it's because I have an older iOS device running 6.1, but the insane size of some of these sites combined with all the side-loaded javascript and CSS rendering (and re-rendering) is just making sites completely unusable.
How come I can load Metafilter in 3 seconds, but Wired takes over a minute, if it works at all? And Medium? Even worse.
Now the web is a (bad) application platform, where the content designers demand full control of interactivity.
As a user you are not well-served by the modern web. It's not the devices per se it's also the content that is different than ~10 years ago.