In effect, it is choosing to apply to all of fiction an incredibly specific and erroneous interpretation of how Dimensions are supposed to work, which itself only applies to the cosmologies of a set of specific franchises. Like, I said, this is borderline favortism towards these franchises, and I see absolutely no reason to put the way they treat Dimensions within their Cosmologies as an objective way to Tier all of fiction, rather than a more realistic approach to the concept, which is far more general, unitary and unattached to any specific Cosmology of any specific work of fiction....
Not only are the last two paragraphs extremely self-contradicting, but they are effectively stating that certain Authors are idiots who don't know what Dimensions are just because their Cosmologies and Interpretations aren't aligned to the Cosmology of completely disparate fictional settings.