I'm not gonna touch the actual downgrade since we already did before, the main reason why it was R>F was because of the creators (but considering them the narrative kind based on ths director would be paradoxical since she's above their hierachy) and their top being considered the "Larger story" (but it seems to actually be beyond the hierachy as well), the rest of the descriptiond was just supporting evidence of them actually viewing the lower worlds as insignificant, but without the narrative difference, they are just higher dimensions at best
Anyway, about paradox space's R>F, my argument is pretty much that in OP, but let me quote the books to help describe jt
Any "supreme villain" in this story will be intrinsically stitched into the fabric of cyclical reality. You can't stop them from coming into being, and you can't make them dead until they're good and ready to go, as authorized by Paradox Space.
It's about freeing himself, and everyone else, from the cyclical, fatalistic prison of the story, wherein they find themselves surrounded by unbeatable foes who all tend to be "already here".
as we know, Paradox space is supposed to be the broader, all encompassing reality, the one that matters to everything
As we can see here, Paradox Space is pretty much established to be the "cyclical reality" responsible for inevitable events such as Jack or Lord English's loop, and the books then explain that this reality is in turn the very story itself, while describing John's narrative freedom and powers which are numeruous times described in meta ways
Then you add in how post canon showed that the Furthest ring's destruction is part of this cyclical prison, with John's necessary authentication and the heavy implications of Earth C being where the cherubs wiki be born, and recent implications of rose being responsible for the horrorterros and Dream Bubbles
So in summary, the very story of homestuck and its system of control and loops is effectively manifested as Paradox Space itself, and this cycle contained insids the story contains the Furthest ring itself, especially since Paradox space contains the ring anyway so by its nature it would probablg need to see it as fiction inside of it
Which is why i think it having R > F over it is fine, now the issue is that i have no idea if that's enough for high 1-A or just a layer
The Furthest ring should be 1-A because its qualitative superiority is more "raw", it's doesn't see lower places as fiction, rather, it considers them "anomalous dream-like fields", that despite their infinite higher planes, each having higher levels of fate and causality, are still totally irrelevant to the void, and it containing every concept in existence, including the very concepts of space and time in their rawest forms, completely beyond those universes and the hierachy, as well as being considered more fundamental and the default reality, as well as being considered incomprehensible
So is basically a bunch of different reasons why a high 1-B universe is insignificant and inconsequential to the void, i think that's enough
As for Paradox Space, it basically embodies the narrative itself whose events, including the furthest ring itself, are part of the cyclical story that it administers
So we have qualitative superiority based on conceptual and ontological transcendence, and one based on R > F transcendence
It depends on if different qualitative superiorities can reach high 1-A or not