I dont know if that is still true for some of todays drivers. Take a look at the built in reverse shaft lean on a D3 for instance. You have to take it later to square the face unless you hood it.
I agree though that we golfers should direct the thrust down and out to both arms straight (well after impact) but the arc of the clubhead is coming up and in post low point and that, it would seem, is where they want us to make contact with the ball.
I was recently fit at Titleist and they were all over me to increase my angle of attack to a positive (rising) number. I did it with ball position and tee height, the spin numbers came way down as you say.
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