Well, he doesn't necessarily need to have done it to climb with something, this is easily circumvented by manipulating reality, he can fulfill any wish without exception, there is no limit to what he cannot, the work makes it very clear that, if Zen' ō wishing he would destroy all cosmology that will happen anyway, he has the means to do that and has shown a certain ease in restoring all Universes and including all structures the way they are, you can't disagree just because he didn't show it, but he can and is a possibility here, unless you have a good argument why he can't I suggest taking a closer look at this, I see Super Sheron being 2-B easily, I don't see mistakes in that, there's less that has evidence to disagree with this, if not then I think I should stay neutral until another employee agrees to this.
About Zen'ō he does not scale with Super Sheron, but with Zen'ō himself, where he has two quotes of erasing everything, not only planets, Universes, Galaxies, and even referring to worlds in Zen'ō's quote (which he's shown erasing in the future arc) he's been shown to easily erase a timeline, I don't see why Zen'ō is limited to just 2-C, he scales with the entire multiverse it's quoted that he's supreme god of the entire multiverse, no there is no one above him according to work and we see that, he easily erased a 4D structure with greater ease. Today I want to see all the evidence for DB characters not to scale with all cosmology, not least because the arguments are weak here.
"Ah, but we don't see Zen'ō erasing all cosmology"
Is it really necessary to have shown? Several times we've seen characters scale with their cosmology without having a single Universal or Multiversal feat.