If reality is divine, then by definition reality is spiritual, not materialist.
My point which is most clear from the quote that you provided is that Reality is Rational. We can see this also from the Mind experiments that he used to develop his theories.
Matter does not think. Since the universe is composed of matter, the universe or Nature. Therefore the universe cannot think. Therefore the universe does not have a mind. Therefore Reality is not rational and has no purpose or meaning. This logical train of thought found in the book by Jacques Monod, Chance and Necessity, which is the foundation of New Atheism. Here we have a logical view of a materialist universe without God, but sadly at the cost of the rational and the meaningful.
On the other hand when on goes the way of pantheism we solve the problem the rationality, because God is rational. While it is true that pantheism does not have an anthropomorphic God, because pantheism is a anthropomorphic God. Humans combine a mind and body, just as pantheism combines a mind and the universe.
Of course the name pantheism has theism in it. A pantheist is by definition a theist. Therefore it is clear that pantheism is not a materialist religion. It is a dualist religion or possibly an idealist religion, where everything is a hologram.
Humankind has wrestled with the relationship between the physical, rational, and spiritual. To grossly oversimplify reality into the material, the rational, or the spiritual is false. I see no evidence that Einstein fell into this trap. He was not a great theologian, but he was a sensitive human being.