Those are all great bands that are, in my view, playing to very musically inclined audiences. Although they absolutely bring the funk, I think they are part of a niche and not representative of a central musical trend.
Disagree, unless that is your statement about the whole jam band scene in general, which then becomes arguable.
They play to an audience that 'the kids' are a part of, which does keep things very current. And also somewhat viable. But certainly not all of them are very musically inclined, a lot of them are just kids on drugs.
