Yes, was an eye opener form me too back at the time.
It was a gateway to older folkheads that I learned to know in the years after (Joni Mitchell, Bridget St John, Sibylle Baier, Roy Harper, Judee Sill, Jackson C. Frank,…). But to be honest, only a few of the artists on that compilation I still regularly listen to. Newsom, Rose, Bunyan and Foster. All others I grew tired of or turned into a path I couldn’t relate to.