I think it’s true in the sense that people in that profession often have dangerous elements to their life and come to an unfortunate end. It doesn’t matter if they were 25, 26, 28, whatever.
I agree. That list spans, what, more than 30 years, to come up with those 27-year-olds.
Over another 30+ year period, I bet some other specific age could also comprise a list. Maybe not with two headliners like Hendrix and Joplin, who got the whole “27 club” thing started, but still, another list or lists.