Matt Birchler, BirchTree:
Well, because there simply isn’t room…with this design, at least. See, even with what’s there now, my fingers get dangerously close to hitting the keyboard when it’s leaned back as far as it will go. Another row would technically be accessible, but it would be somewhere between uncomfortable and unreachable.
Matt has a good point regarding possible hindrances an extra row of keys on the Magic Keyboard for iPad Pro would present. I don’t think they will be unreachable, just inconvenient and uncomfortable given the limited space between the base of the iPad and the keyboard depending on which one of the near-infinite angles of the iPad you have it on.
My initial thought was to make the Function keys half the size of the standard keys, perhaps, the same size as the inverted-T arrow keys. That still wouldn’t take away the issue at hand let alone other unseen possible technical challenges that may lie underneath. Lowering the keyboard set wouldn’t do any good for what is already a ‘tiny’ trackpad, either. Compromises had to be made.
Whatever the case, the Magic Keyboard is here, and it is what is it is. Like many ‘first’ Apple products, iterations will happen over time. That full no-compromise keyboard layout will find its way onto the iPad Pro, someday.