[ArcticViper]

WWII aircraft did not have pressurized cabins, so there would have been no decompression explosion if the fuselage was damaged.

A generalized statement like that simply doesn't work...

The B-29 had a pressurized cabin for instance. Not the entire fuselage, but the cockpit area was pressurized, this had a "tube" for the gunner to crawl back to the gunner's compartment in mid plane, as well as the gunner's compartment pressurized. The tail gunner's compartment was also pressurized, although this was seperate from the rest of the plane's pressurization system.