"Infinite splits every time an event occurs" is a horrible way to run a narrative, because it basically makes your efforts worthless in the grand scheme of things when it just means there's an infinite amount of other universes where you failed.

Additionally, it seems to fly in the face of canon information about the nature of time, such as the discussion between Mide and Dayan at the end of Alexander, or the entire ability for stable time loops to form, or the value of "going back in time to change it" when you can just suppose there are already a block of realities where the world didn't get ruined the way yours did.

The whole story does not make sense in an infinitely splitting multiverse. The splitting of the timeline has to be an extraordinary event to make the narrative work.

Yoshida's past statements have sounded like he's just interpreting the story as much as any of us, and if that's the case then I think he's fallen for the same false dichotomy of "infinitely splitting multiverse VS single timeline" just because there was one clear instance of a split timeline.