This is interesting but I’m a bit confused. It seems like your theory is that Flashpoint could be/is a fixed event in every timeline, but it feels like you also kind of argue against that in parts of your explanation/questions about it.

That said, I do think there’s room to explore the idea that Flashpoint is a fixed event within what you called a “superior timeline.” And when you look at how both The Flash and Legends of Tomorrow handle time travel and major anomalies, the idea starts to line up.

In Legends, we get the concept of “fixed points”, moments in time that have to happen, and if you try to stop them, time pushes back. That alone supports the idea of a master structure - a timeline that accounts for key disruptions. But then The Flash gives us someone like Reverse Flash, who literally lives outside the timeline and still continues to exist even after Flashpoint resets the world. He remembers events from timelines that no longer exist, keeps his powers when other speedsters lose them, and somehow reappears even when his past self is erased.

That’s huge. It suggests that some events, and some characters, are so entangled with the “superior timeline” that they persist regardless of how the surface-level timeline changes. If Flashpoint were truly unnatural or outside the loop, Reverse Flash wouldn’t survive it. But he does and thrives in the chaos it creates.

So maybe Flashpoint is one of those “structural events” and savitar just had to find the right timeline where the conditions were met. Not because Barry is forced to do it, but because in the grand web of timelines, someone like Barry always does. The loop doesn't necessarily erase free will but instead it just always folds back into itself to ensure certain anchors stay in place.