Yes. And it is also keeping a world that the majority has no experience, no idea how to handle, at bay. Even if humans can live in a world without the Veil -- and that is an if, considering how poorly they can handle the world where it's thin -- you would be gifting magic to a population that is untrained and fearful of it. The unsuspecting could harm themselves, others; there would be countless cases of possession, and spirits would find themselves twisted beyond recognition.

( so. bad news, mostly? sorry her world doesn't work like yours, strange. )