The saxophone is an imperfect instrument, especially the tenor and soprano, as far as intonation goes. The challenge is to sing on an imperfect instrument that is outside of your body.
I am not going to be dictated to by fans, certainly. I am dictated enough to by my record company to last me a million years.
So in those days, they were scooping up any young person who could sing and look decent, ah, at the same time.