Some of these people are good players, but ... so what.
Jamming other musicians’ music or improvising blues licks (yawn) means ZERO.
You either have your own voice on the instrument and/or can create your own songs/compositions (that folks actually want to hear, repeatedly) or you’re “just one more”.
For every 10,000 YouTube wonders there is, maybe, one Lynch. Maybe. Or Johnson, Lifeson or Waters. Or Lukather or Crichton. Etc.