An assumption is being made that its a design issue by Ford. I suggest that those scratches may be caused by any step in the process of handling that piece of glass, from manufacturer to the day you purchase the vehicle. Its quite possible those scratches, or lines, were put on the glass the day it was made.
Can anyone say, in all honesty, that there were no scratches on the glass when they purchased the vehicle? Secondly, I have noticed those same vertical lines on my windows....after a few minutes of close inspection and lining up the right viewing angle. Thirdly, would you not purchase a car because of those lines?