Because of course it is. The Regent's aim is not to spread death and misery indiscriminately, regardless of what the Pleroma Aions would like to tell themselves. And that extends to them as well, even if they're our enemies. Why wouldn't we want to help them see the error of their ways and bring them to our cause instead of killing them?

[ That being said, Howl understands that this won't be possible with every Pleroma Aion. But he'll leave that for someone else to say, it being a hard pill for Howl himself to swallow. ]