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I agree it could be handy, but for me it would be weird. Since I use DST so if the head movement was tied to the steering movement. It would get awkward in DST since during turns I am turning in, then counter steering to hold the turn. My rider would look at the turn then look the opposite way during the turn.
Maybe if it was tied to riders body position, with manual rider movement the more you hang off the bike the more you look in that direction.