I don't really understand? I mean, if it was a usual attack, I would understand not being to cover the entire size. But with how the verse showcased the abilities, I really don't see their size mattering that much? They exist, therefore, they are in the river of fate (not to mention, since we are taking the 4-D interpretation, the River of Fate encompasses everything in-verse, so like, It'd be more than enough to cover her. Though I guess I need to make a CRT, maybe, idk, since he doesn't really have the range but it's a property of the River of Fate). Not to mention, with Causality/History erasure, the way it works isn't by taking their size, but just showcasing every action they ever took, and WW just cutting. There were many instances where the distance was in the 2-B/2-A range, but it didn't matter, since it doesn't care about range.