Why Are The BFDI Cast 2-C?

[FlipLaScript]

They scale to 2-C based off of One fixing the timeline with a leg kick. However, I'm confused on why that makes them 2-C...stopping a timeline from collapsing would be Low 2-C (unless you count Roboty and Four's pocket dimensions, but Roboty's isn't even considered one & IDK how the EXIT ties into all of this given that no other pocket realities were affected by the universe collapsing), and even if this counts as Low 2-C I fail to see reasoning as to why this suddenly makes One this value physically.

Basically, what warrants them to be these values? I need help figuring out why

(Aw shit I forgot to add tags, it's ok though)