It is not a question of aesthetics driving worship, but rather of reverence driving aesthetics.
I agree with you, but it didn’t seem to me that was the direction of the author’s reasoning.
In order to have reverent (as well as aesthetically elevated) worship, you first have to have knowledge of God. You have to know Whom you’re worshipping, and what qualities of His command reverence.
I thought the author’s point was mainly about his subjective feelings and needs, and that he was less interested in the object of faith and worship. Just my opinion based on this piece, of course; I don’t know the gentleman or details of his belief system.