No, I completely understand it and don't think it was a rant at all--on the contrary, it's important to remember that sometimes there really IS something standing in the way even if you're doing everything you can.
When we hear hoofbeats, we should think of horses--but that doesn't mean it might not be a zebra every once in a while, too. People do have undiagnose thyroid problems, IR, PCOS, or carb sensitivity that throws them out of whack. It's important to remain aware of all the possibilities.
I am also a freak about reading labels now, but I had to learn it the tough way. Stupid Pepperidge Farm and their massive hunks o' bread.