"Mediocre cover band?"
Not at the Alt Brat Fest, and not at Wurst Times. If you want to hear mediocre bands, you're better off going to Willow Island.
You're right. It should read "mediocre hippie jam band posing as ethno-latin-afro-cuba-jazz-fusion". Haters gonna hate. There were over 100 bands at the Williow Island fest. Not all of which were mediocre cover bands.