Yes, I'm sure that was Lee's intent, but my eyes didn't see it the first couple of read-throughs.
Without hands-on, there is no way to use familiar terms in such a way that they convey entirely different and alien concepts. I
IME, all good internal training will work alignment as part of the basic training drills, though it may not be specifically mentioned or pointed out. Some systems parse out every element and factor for the student to become aware of and consciously employ through individual drills; others incorporate several different concepts into one exercise from the get-go, alignment automatically being one of them as a component part of working the 6-directions energies.
Interesting to note, though, that as important as alignment is to a clear path for power, you can compensate for a compromised alignment by bringing into play other internal body connections that exploit dynamic tension.