Yes, I agree with all of your comments . . . . and then I'd add that many rev flyers (myself included) modify the top pigtails on the standard handles to be able to add "brake," and many fly with their lines attached at or near the maximum brake setting on the pigtails. This offsets the bend in the handles, and puts the sail much closer to being flat to the wind, so that you have to "pop the tops" to put the kite into forward flight.
Maybe the bend is just there so us rev flyers can tell which end of the handle is the top
. Sort of like the left and right stickers they used to put on rental skis
Just kidding people, just kidding.