This sounds reasonable, and we need to look at the setup and the golf swing to get our answer. For starters, human vision only sees forward, in front of us, with no sight whatsoever past the side view of peripheral vision. There is absolutely no sight behind us. The ball is on the ground in front of the body at address and for the swing. The body is bent forward at the hips and the knees are flexed inward in an athletically ready position. The swing (PPGS ¾ limited turn) takes place in front of the body.
The key is to look at the movement of the knees as they turn in the backswing and swing on through to impact and the finish. The knees move in front of the legs and over the top of the front of each foot and ankle. I refer to this as the knees rotate around the ankles and cover the toes. (Note: They never go out far enough to reach the toes as this would basically be falling or collapsing into the ball, or the over bending of the knees can actually cause the upper body to collapse backwards.) The point of this expression of the knees covering the toes is to emphasize that the swing and all the basic movement of swinging the club is in front of the body.
Since our sight is forward and primarily in front of the body and you have to see to aim in the walk in and in the setup, and the swing is in front of the body, alignment has to be based on the 'toes touching' the parallel line to the aiming or target line.
The Surge!