That's pretty much it. Let me restate it in two paragraphs (because there are two concepts, though related). I like kata, and I like the idea of maintaining the tradition of it (at least at some level - I'm not sure I agree with the sheer number of kata some styles have). I think it's a useful tool, when used well. What's "used well"? That depends upon the purpose of the training (from the participants' perspective). There are tools available now that weren't available in the early days of Karate. I think many of the uses of kata can be covered by those other tools (other training methods, videos, etc.). So, I think it's possible to train Karate without kata, without it losing the quality of being Karate.