The combined mass of Venus, Earth and Jupiter is way less than 1/1000th of the Sun. I'm skeptical...
AB0L (Formerly N0KAI)
-----
Kenwood TM-V71A, Kenwood TS-590S, Icom ID-4100A, Yaseu FT-891, TYT MD-UV380, TYT MD-380, Kenwood TH-D7A, BTECH UV-5X3, µBITX V5, µBITX V4, QRPGuys 40/30/20m DSB Digital Transceiver
They lay out in the explanation that the planetary tides influence the Tayler instability, not that the planetary movements cause it.
https://www.hzdr.de/db/Cms?pOid=58444&pNid=0
If they are able to extrapolate meaningful predictions based on this research, it could be very useful, but you are right, Jeff. This is exactly the opposite of what they were saying only 6 years ago:
https://www.aanda.org/articles/aa/pdf/2013/09/aa21713-13.pdf