[ It's a good question. Admittedly, Mordred isn't terribly concerned with the answer, at least for herself — the Throne of Heroes rests outside time and space, so even if the Regency erased her existence in the past, this version of her would continue to live on. But most of the others wouldn't share her fate.

So why, then, with the ability to change time itself, do they live on at all? ]

... They're obsessed with being "right". With perfection. Erase us, and it's the same as admitting defeat, in a way. [ She doesn't know about Xici, but she's drawn her own conclusions, based on her experiences. ] It's not like we were on their side to start with, and then betrayed them. They probably see us as misguided fools, not a credible threat.

[ A mistake, she thinks. Whatever the others are capable of, she alone can crush armies. (But if her confidence could win a war, they'd already be done here.) ]