The Folk Process effectively removes the creativity of the working-class individuals from the equation by regarding them as passive anonymous carriers

I think you've got that back to front. For me, the folk process celebrates the creativity of all the hundreds of unknown singers who contributed to the shaping of traditional songs. It's when you start denying the folk process that you deny the creativity of the song-carriers - most of those hapless yokels couldn't never rise to the elite of "master composers", after all. The idea of the folk process is an open, democratic vision, celebrating a near-universal creative participation in the making and remaking of music.