When you possessed reality, when you could control spacetime itself...
You had a fight with your family, so you went back to before the fight. Taken to an extreme, didn't that mean... you had killed the family members who fought with you and created a new batch of family members who had not?
Or put another way, you played a gal game into a bad ending, your girlfriend's affection dropped, and you simply loaded an earlier save, said everything over again, and got the smile you wanted.
There was almost no difference between the two. Both required you to first regard everything as an existence 'beneath' you before you could do it.
Different Dao Lineages held different attitudes toward this.
Though there were individual differences, one could generally summarize the various Dao Lineages' attitudes toward this kind of reversal.
The Shaman Path believed that illusory things were real as well. Though some Shamans did not care, most Shamans actually believed they should not do this. They would not reverse time—or rather, they did so only rarely, and only when absolutely necessary, such as during the Human-Shaman War.
More extreme Shamans, like Li Qi, had Dao Paths that did not support reversal at all. They believed the world was real, and thus severely weakened their own ability to reverse things, allowing them only the faintest influence over the future.
As the Shaman Path's mortal enemy, the Human Path was much more straightforward. They too believed the world was real, that the essence of reversal was killing them and then reshaping them.
So... what of it?
Kill them, then. When the Human Path's third-rank practitioners reversed time, they would protect 'humans,' achieving the effect of bringing an entire group through time. But they did not care whether anything nonhuman lived or died,