I agree with you guys, but honestly, JSF never learns.
I say this with a heavy heart but it's possible that soon they won't have a new generation of men to promote. Kao, as well as Shun, is obviously being pushed to do too many quads, too soon. Other young quadsters, such as Tatsuya Tsuboi and Nozomi Yoshioka, are already plagued with injuries.
In the grand scheme of things, even if Kazuki isn't going to Worlds now, his long-term prospects are good. I'm grateful that he has been very sensible and careful with his training and layout. May he continue this way, and I'm sure his chance to be in the big stage will come again.