A lot is time-related and, as JD notes... the lyrics no longer strike the direct emotional chord as before, perhaps. Without the direct emotional & situational context, what's left is the music & that vibrato. That, I concur, hasn't aged very well.
Nor have my ears:
Nor have my ears:
...(A)... song from Joan Baez I love is Diamonds & RustSo do I -- but now that I'm a few months older, I prefer the version by Judas Priest! Go figure...