The thing about Steve Ray Vaughn was that he was not only a great guitar player but also a great songwriter (and singer and performer). So perhaps being a virtuoso is not enough. . . .
No doubt. That's why I put the headline in the form of a question. He has the potential to be a legend. ;-)
But anyway, technically, I think he's tighter than Stevie. Maybe the guitarists out there can there can tell me. I was blown away by what I heard live. Not a wasted note, as far as I could tell.