@Dark: No, it was decided upon that people who move in a void without naturally being part of such an environment is wrong. Culex is naturally part of this environment, and states he's even feeding off of power from the dimensional rift.
@Ryu: I apologize for it being irritating to deal with, but I would like to share what I think of this, too.
1. Yet we would not consider references canon, would we? We do not say Wolf Link actually appeared in Breath of the Wild because you can summon him with an amiibo, nor do we say Dying Light is connected to Mario due to a small easter egg. This is the same thing, it's a reference to something that holds no importance to the actual story. Heck, Culex himself doesn't hold any importance in the story either.
2. I do not see how when these "lower dimensional statements" were references that we would otherwise discard, with him stating and being stated elsewhere to have powers in the 4-D range.
3. It supports other statements that imply such though.
4. Culex outright says he
is those two things.
"
I am formed from the supreme power. None in this world surpass me. Across time, from this world's beginning to its end,
I am the inheritor of the ultimate of Two."
He's basically saying that he literally
is time and creation across the entire world, which would make it an entire timeline.
5. Culex states he lost to an anesthetical reference and the power of love, which not even
2-B Super Dimentio could beat, thus, a Low 2-C should not beat, either. Mario beating Culex is a feat for him, not a negative feat for Culex. Yes, it's an outlier for Mario, but I'm just saying.
6. Again, he says he lost to an anesthetic reference and love, and the whole thing of him needing to "gain the power and fluctuations of the 3rd dimension" is a nod that 3-D games are superior to 2-D ones.
Now, you don't need to respond. This can be closed if you so choose. I'm just going to put my two cents, and I am not trying to force nor irritate you in any way.