Well, the NTP approach tends to be more structured. We want to know the makeup of chords, and how they fit with each other, what they're called, why you can use one scale to solo over a progression over another, etc. If we run into a problem, we'll usually analyze it into oblivion, and if we need to seek advice from other guitarists, we'll try to do it using the correct lingo, so there are no misunderstandings. NTPs also tend to be pretty big tech-heads and tone fanatics, buying up all kinds of sometimes unnecessary gear in pursuit of the right sound.
I can relate to what Stevie says about not worrying about fingertip pain, though. Some people are too concerned with little roadblocks like that. If you want to play, you won't let it bother you. If it bothers you too much, you probably weren't meant to play.
I don't think an INTP player would talk more or less than Stevie talks, but I think an INTP player would be more likely to nerd out in their shop talk, rather than talking about the nuts and bolts of what makes a good blues player or telling stories. Here's that written interview I was referencing earlier.
Stevie Ray Vaughan
I just don't see much of a preference for abstraction here.
I suspect the Edge from U2 is an INTP. I'm going to try to find an interview with him for comparison.