This is the natural position for nearly all golf swings except putting. The only reason you see my right hand in that position in the putting photo is that I’m using a saw grip. If I had started with a conventional grip and allowed my right hand to rotate into position as in the other two pictures my putterface would be dead shut and I probably would have missed the putt.
You often encounter shots from non-level stances on uneven contours around the greens which wreak havoc on your wedge results. Suddenly your wedge swing is bottoming out in a different spot relative to your stance and you may be at a loss as to where you should position the ball. Enter green-then-white contact and a heavy dose of extra strokes from short range.
Having the “touch” in your mind’s eye to know how firmly to stroke a putt (so its speed matches the break) and then also having the “feel” in your body to execute that touch is gained only through experience and solid practice. See No. 1.