So to speak means as opposed to hitting a straight shot or a fade as compared to a draw.
Are you going to tell me that a draw has more backspin off an iron, the same, or less?
And what scientific principle and observation are you going to apply to prove your point? Every shot has backspin on it or you wouldn't be able to get it into the air.
Plenty of PGA Tour pros hit draws and do just fine with them and some do not and do just fine as well.
Ben Hogan learned to fade the ball and in his own words 'the ball came down as light as a feather'.
I read that in Life magazine many, many, moons ago.