The "sea" thing is just baseline, even the revision thread said so. It just a space that contains baseline 2-A Multiverse and a bunches of 2-C to 2-B creatures that eat them. It's not even comparable to Puella "Libraries" cosmology, which contains Infinite 2-A Multiverse with each universe can branches off into another set of Infinite alternate universes.
Unless you quote a line that I don't remember, nowhere in the revision thread was it 'declared' that the "sea" is baseline 2-A; it's just that no one discussed any further about it being Low 1-C, as everyone was focused on discussing whether Yogiri himself is Low 1-C (and we don't have enough context to support the point that he transcends the sea, so his tier was left at 2-A). In any case, since every verse that only has "countably infinite" universes would be considered baseline 2-A, it doesn't matter to begin with.
Besides, the whole setup of libraries with infinite bookshelves is in itself a restriction to the size of the libraries (as the bookshelves would cover a good part of the library, if not completely fill it), while the "sea" has no such restriction (as the 2-A multiverse in ID is basically non-existent in comparison to the sea). So it's actually the Puella libraries cosmology that is in the inferior position.
Also, unlike in PMMM where there's no difference in the level of the universes, in ID verse, the higher a Heavenly Record (universe) exists in the "sea", the higher level it is compared to the ones below (thus, you need an unbelievable amount of energy to travel from a lower to a higher universe, while it's not much of an issue to travel from a higher to a lower one or to travel to universes at the same level, if you have the means/ability to travel from one universe to another). No matter how strong you are in your universe, a higher level universe would be inaccessible to you without enough energy to carry you over there (it's so difficult that Yogiri's party is trying to get a 2-A existence [UEG, the ex-ruler of the ID multiverse] help them go back to their higher level universe). The universes in PMMM would only be the ones that are found at a very deep level of the "sea", and thus are the lowest level universes, as there's no similar infinite-hierarchy system in the PMMM verse (fyi, if the higher universes were outright mentioned to be 'infinitely superior', instead of 'higher level', to the ones that exist at one level lower than them, ID would be a High 1-B verse at least). Thus, Puella verse is simply no match for ID verse.
And didn't I already told you those merely refers to AP. Puella has been explicitly and canonnicaly states to have more Multiverse and they are separates from each other. Site rules cannot disregard what has been states and shown in Canon.
Are you really not getting where you're wrong? Did you not get why the rule specifically mentioned
"in spite of what our intuitions may tell us"?
The number 100 can only be as big as "100", the number 1000 can only be as big as "1000", and similarly a baseline 2-A existence (like Madoka) can only be as big as a "baseline 2-A multiverse". This is such an obvious and simple-to-understand logic that I don't see how anyone would not get it, unless they're deliberately trying to ignore it to prove their own point.
The site isn't disregarding the canon, it's just stating the fact that regardless of the number of multiverses, the size of the verse remains the same -> just
baseline 2-A.
You said it yourself Yorigi ID needs to make several jumps, which in this case, literally Infinite times. He can never fully destroy Madoka nor will he has the chance to do so when he literally dies immediately from Madoka Law hax.
I only said that he needs to 'make jumps' to play along with your flawed logic that Madoka is somehow bigger than him just because of PMMM having more multiverses, which is absolutely wrong factually.
Rules cannot disregard on what has been shown and stated in canon materials. Deal with it.
Again, rules aren't disregarding anything. They're only stating what is not obvious to those who don't know how infinity works and misunderstand things, like you.
Puella verse is just baseline 2-A, and thus completely vulnerable to Yogiri's attack. Don't make up things on your own, when the facts speak otherwise (even if you don't care about the site rules, you still have to care about the mathematical rules of infinity).