They should have just built it like it's current cousins, the WiiU gamepad and the Wii U Classicl Pro Controler. Make the 4 buttons adjacently across from the D-Pad, and the two circle pads adjacently across as well. They have a whole right section of the 3DS that is empty.
I personally don't care as I no longer own one, but clearly it is pissing customers off who have to lug around a clunky external device for an experience that is supposed to be mobile







