He had so much more to give and music was changing rapidly during that time. A lot of people don’t realize just how short his career was.
I think Buddy Holly would have kept doing what he was doing (as great as it was). Cobain was a loss, but would he have evolved beyond Grunge? I don’t know. Could he have saved us all from the crap fest of music in the late 90s and early 2000s?