This turning point talk comes down to semantics. One could also argue that end of Imperial Japan was decided by a plan to bomb Pearl Harbor. The rapid loss of four aircraft carriers was serious, but not a deciding blow because Japan did not surrender until more than three years later. They were worn down by attrition over time. One immediate result of Midway was that Japan had to scale back efforts against New Guinea and Australia, but that does not mean they were content to stop attacking and simply fall back. Otherwise the Battle of the Bismarck Sea would not be necessary. Likewise the war in the CBI was a bit more than a skirmish.