Said another way ....

Photo spread in this month's Golf Digest. They all have the exact same odd flex at impact.



The majority of the curve is artifact.
If you picture the image being drawn from top to bottom, left to right, you can see how when the club is pointing upwards it draws the clubhead first then the shaft (that's why the clubhead is behind the shaft) and when the club is pointing downwards (impact) the clubhead is drawn last, that is why it is head of the shaft !

Makes sense !