For 1 - As I said in my post, I was only responding to one of Oz's points (could a low grit hone give a finish like a higher grit hone). That being said, it most certainly is the case that every stone falls into a "grit range." Whether that range can be defined or provides much meaningful information is another question. But no, I was not talking about the "natural stone" in question.
For 2 - I could be wrong, but I don't see how cutting deeply vs cutting shallowly could provide the same result on an edge, measured by scratch pattern or shave. Especially if the abrasive starts to wear down or wear away but the binder does not. For example DMT's "break in" and "wear," and the way they cut/lap changes. Once again, not in reference to the "natural stone" in question.