How are these issued handled in the windsurfing community? It's been around for a lot longer and they probably ran into some of the same problems...
iko is money making machine, a parasite.
just giving iko functions over to the national associations is dangerous way. since they are usually in constant need of money and they don't own kite clubs or schools it would be very tempting for them to start collect yearly fee from trainers for themselves.
local clubs can do all the job for themselves, individually or united regionally. local clubs have the best local conditions knowledge and can deal with insurance issues as well. besides, they trained windsurfers without "international" body and without national level bodies quite successfully for years.