Yes, it did, we just did not see the "benifits" until after the shooting stopped. The Germans were beaten down and did not have the will or where-with-all to resist occupation.
Area bombing was supposed to make the Germans stop fighting. It didn't do that.
The invasion and conquest of Germany by the Allied and Red Armies did accomplish it.
Area bombing helped to some extent, but its contribution to Nazi defeat was not even close to being in proportion to its cost in dollars and in flight crew and civilian deaths.
What about the "Werewolves" the Nazi resistance which operated for a few years after the war ended?