I seem to remember hearing somewhere (no, I don't remember where) that FIRST was trying to discourage the use of a two-stick drive system this year (
). They probably chose two right-handed sticks to say, "OK,
this joystick is for driving, and
this one is for something else. Not driving."
I'm not sure about this and they're not forbidding the "old" way (yet), but you never know.