4D or even infinite-D has no meaning in tiering system, what matters is "size". And if the "higher dimension" thing is not inherently associated with "transcend space-time" but by something else and before. This is not even enough for Low-1C than
Gow's Yggdrasil , it was downgraded to 2B/2A because transcend spacetime is no longer sufficient for low-1C.
And if I'm not mistaken, the only thing that supports low-1C is transcend space-time, so it's definitely not low-1C because they don't meet anymore, as the GOW link I gave said. Only "transcend" thing in context is Higher level/layer of reality exist above multiverse, but in context you prove, it just become one with all of existence which is 4D and acasality (limited type 2). "Become one" and "Part of" are wildly different, the former implies they are all the same thing, the latter clearly not. Has anyone said your hair is one with you. Unless the context implies otherwise, this one doesn't.