No, but I mentioned him because it was his responsibility to rewrite the 'coarse' lyrics for songs that they published jointly, and I think that needs to be understood. I haven't looked into the songs Sharp published after the break with Marson (I probably should), so I'm not sure a this point whether Sharp changed any texts himself. I'm not aware of any amendments to his Appalachian material between field notes and publication.
I would agree that Lloyd was a more significant figure in the folk revival than Kennedy, though PK (for all his well-documented faults) did collect some wonderful material.