If you disagree with the fact that each door have an infinite amount of doors infinitely, than that's another thing entirety. I explained why if what is being said in OP is correct, it would qualify as Low 1-C. If you think that the evidence for doors within doors infinitely is not enough than you should ask more evidence to OP, not me.
Also, I want to prevent misinformation from circulating about the MCU cosmology. First of all, the Holy Timeline is 2-A, not Low 1-C. The Holy Timeline is the only Timeline that remained after He Who Remains destroyed all other Timelines and have nothing to do with this.
Second, every singular moment in any cosmology is a point in time, it's the reason why the time dimension is considered in AP, because each moment is a "snapshot" of the 3-D reality (more on this in the
FAQ, specifically the part "How do temporal dimensions impact on Tiering?") The reason the MCU is Low 1-C is because from each of this point an infinite amount of Timelines that extends infinitely are created, and on those branched Timelines another infinite amount of Timelines will be created at every point in time and so on, in the same reason I explained before, with each Timeline being a 2-A structure, creating an infinite^infinite system. There is no mention of a 2-A structure being a point in the Timeline. I watched every single MCU product and participated in a lot of CRT regarding the cosmology of the verse, and that's not how the cosmology works.
But enough derailing. The MCU is not the topic and Low 1-C now have other arguments that will ve brought up in the future, so it's useless to continue bringing it up.