I'd say I agree with the quote in your reply. Raymond Daniels' is a great example, he gets mauled every time he's against a half decent kickboxer, and he gets trapped by the ropes all the time. I did correct him about Okinawan Goju on facebook once, but I think a lot of what he says about karate in kickboxing is correct.
You tend to find the guys who do better at kickboxing, tend to abandon a lot of their karate. I mentioned that earlier in this thread - I think that if the long stanced, long ranged in and out footwork heavy style of karate was really fitting for kickboxing, you'd see more guys having success with it - but at the highest levels they don't seem to do very well.
The Kyokushin style guys have done well in kickboxing, but the more side on guys haven't had near the success, probably because the style isn't suited for a small ring with hard corners.