I agree, but what do you think about the second article that recommends looking at the hole when putting? I think we agree again it's the wrong approach, but even the first articles mentions to
"first briefly sight toward the exact spot where they wish to send the ball, and then settle their eyes onto the ball and hold them there."
Better players look at the target after they are already aligned. Are they re-checking alignment or perhaps looking at what they are swinging towards (during which time the face happens to hit the ball). I ask because I tend to hit
at the ball
which is possibly caused by too much focus on the ball or perhaps the wrong kind of focus
at
the ball.
Agassi had an exact mental picture of the court and where he was situated when his focus shifted to the ball. He could probably close his eyes at impact and say exactly where the ball would go.