You aren't gonna like it, but
Because it's excellent technical playing with lame, boring musicality
Yes, he's really fast and plays super fast zakk wylde/bonamassa pentatonics and Romeo arpeggiated tapping lines, but at this point everyone has seen 5 year old chinese kids do that shit 3 times this morning in their youtube feed
Does he have a legitimately kickass band? Can he do it up on stage? Write bangers? He probably still wouldn't get famous, but he would get more RT attention.