The article says "Leaving aside all the hidden assumptions in the question — that there is a cosmic creator, that a cosmic creator wants people to know about them, that the cosmic creator has an insight into the minds of future intelligent creatures and can therefore predict the future — the CMB would be a good place to hide a message if you were a creator trying to target civilizations at our current level of development, said Avi Loeb, a Harvard astrophysicist who wasn't involved in Hippke's work published to the arXiv database on Nov. 29. (The paper has not been peer reviewed.)"
After reading, just what is the message in the CMBR that we should read, i.e. what is the CMBR telling us about a *cosmic creator*? Seems not as clear as messages in the Quran, for example.