Guthrie is by no means "obscure", and he isn't the one posting these videos. He was hired by a backing track company to demo their tracks.
Again, your ignorance leaves me flabbergast. Guthrie has been performing for years and years, and is listed among the ranks of Steve Vai, Joe Satriani, and other world-class guitarists. He is a pioneer of jazz fusion. In fact, Satriani praised Guthrie on many occasions, calling him an "amazing guitarist".
As far as what you said about "shredding aimlessly", I doubt you'd say that about Vai or Satch or Gilbert. Why say it about Guthrie? Because you haven't heard of him? Fuck off.
http://www.youtube.com/watch?v=P_QMxVemDBQ...feature=related
On a side note, he has been a guitar teacher and has played for a few obscure bands for most of his career. Guthrie's solo album, released in 2006, sparked a bit of recognition for him.