I totally agree with the writer on the topic of tacky design and absence of traditional symbols.
However round churches have a longer history than he credits. When the Templars came back to Europe from the Middle East, they started building round Churches - this would have been about 11th c. It is said that this was in imitation of the Golden Mosque in Jerusalem, which they held at that time, and utilized as a church.
Not at all like modern "round" churches, which put the altar in the middle, often at the bottom of a well. They are, in fact, anti-reverence by their very nature.