I agree with everything you said. It's interesting to see someone combine the old with the new and I think it's a shame it's hard to find this level of dedication in most karatekas--and martial artists in general--today. I understand there are all kinds of reasons for this: work, school, family, etc. Almost everyone I've met are 3 days a week kind of guys, with perhaps a bit of time here and there dedicated to practicing their kata at home. I did know one guy once who attended classes 5 days a week. But I've certainly never known anyone who trained 6 hours a day, every day, and essentially made it their job, their mission.
I have only studied karate on an off, but for me, true karate is a very nuanced and technical style of fighting and you can't really get that good at it without seriously devoting yourself to practicing and fighting. Going to classes three days a week may be enough to learn the FORM of the art--the techniques and the mechanical motions, the proper sequence of moves in a kata, etc--and it might be enough to get a basic level of self-defense skill, but it's not enough to gain a real proficiency in the art.
Personally, I wish I could bring myself to this level of dedication, but it's difficult, especially in that I don't really have anyone else who has the same sort of interest, you know, like a support system of like-minded individuals to train with and share things with.