Im sorry to disrespect you but you seen to know not alot about the martial arts.
1: Taekwondo is not 90% kicks is more like 60 - 40 and this is coming from someone who has trained in it for years!
How can you say karate's combat effectiveness is moderate, have you trained in karate or taekwondo, have you ever been in a real fight and used your above training if you have any?
80% of fights turn into grappling - well bullshit mate, i have been in numerous fights and never let my opponent grapple me, only non trained fools would grapple rather than hit their opponent!
I have also trained in akido and put it to good use in the street fight, it is very effective for self defense when combined with some other form of more aggressive art or basic sylabus in punching and kicking.
Im afraid to say but you dont seem to know very much about the arts, more theory from books and no real implementation from you - in future dont post on a subject you know nothing about!