1. By this very wiki, no now. That should be treated as game mechanics as the scaling has been proven to not make any sense. This pretty much got talked about in a previous thread shown
here.
2. No, the Anamoly DID exist. The game pretty much states a "you" when doing an action. For example...
here and when you pick up items on the ground. Regardless of how you can even say that "Oh the player didnt defeat OF, the souls did!" No, thats because the player saved the souls which led them to team up and defeat OF.
3. And yet nothing even proves it that Base Asriel scales to Chara because no proof is even said about it. At a lowball, we DO have a confirmation that he is Low 2-C, but the reasoning of him being 2-B at base is litterally none at all. Infinite Stats do not mean anything. Furthermore, if you dare say that Stats are canon, nope. See
here and
here. If you really say that Asriel is infinity, then how is Asgore even doing the SAME AMOUNT IF DAMAGE AS HIM (Both deal 8 damage assuming no armor)? If you go by that logic, does that make Asgore 2-B? I dont think so.
Angel of Hyperdeath, Angel of Death, whatever. But I still agree that AoHD should keep the Multiverse rating as he scales to Chara, in which both of them had one thing in common: They were doing a True Reset. One that would destroy the entirety of Undertale, which theoretically, would contain up to 1000 universes (SAVEs) if you save the game many times, but at a lowball, at least less than 1000 universes, so 2-C likely 2-B AoHD Asriel it is.