Except we already learned
There is an overexpecation of bombing. But it is better than no bombing.
Yes.
the summary of the article is bombardment has a role, it is not a magic bullet.
Agreed. It will be interesting once the war is over to learn if something similar was the case at Dunkirk. I got a sense that the Wehrmacht didn't have much of a role at Dunkirk... that it was for some reason a Luftwaffe show.