If it was not for those prevailing frequencies, there would be no need to do The Work. We do The Work in order to be able to overcome them.
I agree that those negative frequencies motivate us to become aware of, and counteract, them. However, the work I meant would be needed regardless of those frequencies. I mean, even if we were living in a 3D STO world, we would still need the self-work 'of conscious personal relation to God/Being/Positivity' although I know that the concept of self-work cannot be limited with this idea, and I don't either. Apparently, the main reason for the fall from 3D STO in the long-wave cycle was, arguably, the lack of work on self.