I could be wrong, but that was the arrangement on the Poker I. I could imagine it would get annoying, since you would not be able to get out of the toggle mode (Fn+Rshift).
This was my only hesitation in buying the board, but I figured out how to best use the Pn function. I have OKL: as arrows for gaming, which I lock with Fn+rshift) but when I'm typing, I just use right Fn to use the default WASD to move around text blocks and explorer windows. It works for me.