if you in a tangle completely ditch the kite you might very well be leaving someone else with a problem.
I'd say it is still important to have some kind of mechanism for retaining your kite.
If there are tangles at every turn I think the arrangers have been irresponsible.
edit: I see that there are ways of attaching leash to a ohshit handle, which would be weird when you loop the kite..
either way. Might be a good start