I wonder if we, both as artists & audience, create a hurdle for performers by associating genius with complexity so that sometimes people feel that by playing in an apparently simple manner we display a lack of worthwhile talent & thus putting pressure on people to keep pushing at the boundaries at every possible moment. I'm not sure who it was - it might have been Al Cooper - but I remember an instance of someone having been dismissive of Pop Staples' guitar style but who later on said that they hadn't realised how hard it can be to play simply. There are people who have amazing technique but who leave me cold but others who by doing less involve me. But it depends on the player & the material chosen. And of course it's all subjective!