There is a tendency when someone dies at an early age to overstate their accomplishments, especially if they went from strength to strength to strength, like Gram Parsons did.
But, weirdly enough, as one of the architects of country-rock, it’s possible that Parsons remains an underappreciated figure, especially in terms of his songwriting. Part of this, of course, was that he thrived on collaborations, so he wasn’t ever fully thrust out into the spotlight.
Even the albums which bore his name were full of collaborations, covers and of course, Emmylou Harris.