i can "feel" no similarities between the sports. I wrote the editor of outdoor magazine with this opinion,ie; why compare them they arent comparable ( they published my comment) when the "windsurfing has been cancelled" story was run by them.
Skiing and snowboarding are much closer IMHO.
it also suffers from severe wind directionality limits.
That is unlike windsurfing, strong offshore, straight onshore, is fraught with perils. As is launching in a sheltered bay , or in the lee of a wind obstruction.
and IMHO, eventually you will get hurt, like all the guys i know and hopefully not too bad.
Of all the kiters i do know that can kite worth a darn... about 3, two still windsurf ( more then kite) , one dropped windsurfing altogether.