Great work as always, Ken.
Don't worry about long blogs man, I enjoy reading them, and I'm sure others do as well. It's actually one of a handful of reasons I keep an eye out on the blogs page.
I personally also keep a clear separation of definition between path-finding and AI. I guess it's just personal taste. Just as I don't consider the actual movement of an object as part of path-finding or AI, leaving AI simply to the definition of behavior and decisions; which also work together.
All-in-all you have the results you were looking for, which look flawless, and done at a quick p