I don't think Dr. Kipping is correct but he does make a good case for himself. I think he makes the same mistake that I or others have made but in a different part of their solution.
https://www.astro.columbia.edu/profile?uid=dkipping
https://youtu.be/PqEmYU8Y_rI
https://youtu.be/HdpEGDNc1Uw
