It would be interesting to discuss the ethics of the Dept of Temporal Investigations. They've basically taken upon themselves to decide that the 'True timeline' is the one that would have happened if nobody ever travelled through time. Meaning they're assigning full value to one set of lives and lifetimes and no value to others.
But they didn't reset Timeless so apparently they like Voyager better than other people, so they aren't just picking the 'Natural' timeline.
So basically they're playing God.