I remember Clayton Thomas being interviewed about the band- he said the kiss of death was when fans/kids would listen to their albums and songs and all of a sudden the parents would say, “hey- that’s pretty good!!!”
LOL! I could see that happening. That “underground” FM station was known to all of us kids but not to our parents. It was the coolest thing in the late 60s. I got exposed to all sorts of music that never got mainstream AM airtime - BS&T, Chicago Transit Authority, Fever Tree, Taj Mahal and many more.