My problem with this type of playing is that it always sounds the same, and I find the sound kinda lacking fullness. I watched his other songs and they aren't as interesting, and it gets boring so fast imo.
It also has a high wow factor : with some practice you can play a few things that would impress youtubers, while you would still have problem passing a correct strict picking exercise. I'm not denying his particular skills, just that with a little tapping on open chords and some rythm you can build up a song in this style.
It reminds me I need to practice guitar myself again, but I haven't had the chance in 4 months and it's not going to happen soon !