Looks like a the letter, "j" from head on, approximately.
The acute angle of the J combined with boat heeling to leeward means if too much lift develops, the tip of the J surfaces, reducing lift and avoiding a crash.
The boats have huge beam and ability to raise and lower foils working in their favor.
Neither of these things are available in kiting, and in themselves they would add so much disadvantage that the result might not be fun, or fast.
The concept has major challenges to adapt to kiting.
It still has appeal though, seeing the AC cats flying with these, and now smaller cats.