Whole pieces I agree with you but try this for an example - it's not folk! Paul Gilbert Scarified

At about 1:20 there is a tapped bit and I would reckon he does it this way because you can't play it any other way. He's another guitarist who has enough technique that he doesn't really need to use a technique unless it serves a function.

I reckon he'd probably be able to knock off a few jigs and reels at pace if he chose to!