I apologize if I misunderstood/misinterpreted what you were saying. I thought you were trying to minimize the concept of CH and overly-limit its scope.
Lol, and I am, just not as much as others. The third category is the trickiest one. If halacha has a clear stance on something, either to do it or not to do it, this category doesn't apply.
My answer to CM was specifically about his question "did you ever stop and think what this says about your religion to an outsider if that matters at all to you?". We don't care about what outsiders think when the stance is clear in halacha. But that's not to say that we never, ever care, just that it's limited.
This would be in contrast to Christianity, which has at times changed to meet its adherents' - and sometimes the wider world's - evolving views on a variety of topics.