I am sorry, even if English is not my mother tongue, this article certainly does not give a "no" to interactions between planets and sun.

Actually the sentence just before the one you cite says:

"The moon, sun, and other planets have an influence on the earth in the form of perturbations (small changes) to the gravitational field. "

And anyway if you search for other scientific articles on this topic, you can find at least a handful of them.

Then you can criticize the quality of this research (single author, unknown univ, etc) but it exists.

This discussion reminds me how the plaque tectonic theory was rejected for 40 years.

https://en.wikipedia.org/wiki/Continental_drift#Rejection_of...