I think he wants you to stay in the fat burning zone each time. I noticed in this and the first book that he tends to "remind" us of things every now and then, even if he doesn't consistently repeat them throughout the full text.
It sounds like you are very dedicated and are doing everything right. Try not to worry about results. Everyone's result may be different, but you'll definitely get something out of it. Congrats on putting forth the effort, we look forward to your success story