I have read the link you provided which discusses 7 main points which aim to prove that there cannot be a creator. You have quoted point number 5, but to me, all the points seem to be related, and I think it all boils down to the question mankind has been asking for centuries—
if God is all good (or absolute–without changing), then why isn’t this permeating throughout the created world? Why is there evil in the world? Why do things constantly change? Or to use the Buddhist language, How can the Absolute be the Creator if there is no Absolute in the world? If God is all pure, all loving, etc., then the creation should be flowing from his nature and be itself a model of this nature.
God is Being, and being is the only thing that exists. All things that
are participate in Being, share in being, and in that sense can be said to be One. However, this does not therefore require that all things be absolute, for things can exist finitely, and their being conditioned one way or another, and for them to at one time exist in one way, and then at another time another, due to the permission of imperfect secondary causes. But all that is,
is. Non-being is not a separate substance. It is the varying between being and not being that allows change, and from change we measure duration. It is also from non-being we derive evil, because all things are good in that they
are, and evil only judged in deprivations of being. Goodness itself is itself convertible with being. That is, being
is goodness, and human morality is itself only one facet of goodness, comparable by analogy.
So in that God is being, and being is goodness, and all things called beings have being, and that all things are good insofar as they instantiate being, God is pervasive in all things that
are precisely in that they are, and all things that *are *participate in God/Being/Goodness precisely because they are. The only things in the universe are things which participate in God in that they exist. There is no separate substance pervading it that is not participation in God.