If its nonsense then why has every other post PS1 pad design used a non symmetrical analogue stick placement? DC, GC, Xbox/360, WiiU...
This primary thing you speak of is nonsense. The symmetry of a DS is just as good. If 'primary' is the supposed pinnacle then the right stick would also have to move and swap positions with the face buttons.
It looks to me like the prototype PS4 controller is fine, symmetrical (like our hands are) but with tighter spacing for better comfort.