I’m just going to state this now because not all of our readers are from Australia, not knowing our slang, and might take the word “destroy” too technically. No, Goku is not being destroyed in the way a God of Destruction “destroys” something. I have used the word “destroy” as a slang to describe Whis’s training with Goku.
Leaked manga drafts for the upcoming Dragon Ball Super manga chapter 71, have revealed that the Goku and Whis will continue their training. As well as the fact that Goku is still well below the level of an Angel, as Whis clearly demonstrates by “destroying Goku in a fight.”
More leaked manga on page 2.