Alright, so what exactly is disappearing with the canopy, the celestial axis, or the celestial foundation?
Because, for a concept to qualify as CM 3/2/1, the prerequisite is to govern something.
let's not talk about CM3 since it's not important rn.
CM2 is about "governing x aspect, but still being dependent on reality", the issue is that the canopy/celestial axis doesn't govern anything. The canopy is a "spheric veil" bubble that protects the world and the Celestial Axis is just a tube to travel between worlds. You do agree that they don't qualify for CM2 (since they don't govern anything) and the same with CM1, right?
Now, we have the issue with the celestial foundation, if, like you said, those are "valid CM concepts," why does some world have the Celestial Foundation (and the rest) physically present? What is supporting the worlds/aspects of the world?
I think we're having a misunderstanding. I'm not saying that "CF/CA/Canopy aren't conceptual objects", I'm saying "they are conceptual by their nature, but they don't qualify for our CM standards, because they don't govern anything".