The sport was not developed by people doing something because that is what everyone else or the pros do.
There are risks involved in riding substantial waves, I manage the risk at some spots with wearing a leash, these spots have small launch areas with a rocky coastline, losing your board will mean dumping the kite and swimming in.
Yes the waves are worth the risk, if I have to explain risk to reward here we are not on the same page.
QR on reel leash is not that hard to add, the main benefits to me seemed that if attached to the back of the harness the leash wont wrap around my feet when shuffling around on the board.
Anyway seem like enough naysayers to make me wanna try one