There is a lot of blank space but it makes sense that there's blank space because you're only getting it through these little snippets from these two specific people and it's fine to worry about it. The characters don't need to explain how the time war works to each other. It gives you a lot of leeway to go like oh this don't worry about it, I'm sure they'll get back on track soon. There are always one at least one if not 50 handwaves that have to happen yeah just to like get you to the end of the story. That's setting aside things like Star Trek for the want the whales where they invent a scientifically repeatable method of time travel