Guthrie is indeed otherworldly. Another guitarist from down under is at a similar technical level but mostly plays acoustic. Tommy Emmanuel. I saw Tommy last year in LA and was simply floored for 2 hours as he tore up that Maton in ways that should not be possible. These are the Mozarts of our time.
Side note: One of my performance driving students last week was Herman Li of Dragonforce who is no slouch on guitar either. We talked about a Steve Vai show he went to a few nights earlier and compared learning a difficult corner to learning a difficult riff. Same exact method to get it down and do it with precision.