Oh, I think she mostly wants to make sure no one can become an Executor- someone with powers. [Just flat-out saying it, what's a secrecy.]

They're supposed to maintain the afterlife, from what I hear. And if things start working like they used to, with people eventually reincarnating... well, it's hard to say exactly what happens, I haven't been around that long. But it would definitely be a big change!

I guess no one really wants everything to change after they've finally gotten it all just the way they want.