It’s basic physics……and seeing pictures of their subs in a parking lot full of snow.
The tube was known to have voids because David Lockridge pointed them out.
If water were forced into voids at 6000psi, it’s rate of evaporation depends on the the size of the opening where the water came in.
The nature of spun layers means you could end up with a long capillary void following the path of the strand. If said strand was “wetted” with not enough “epoxy”, then you could end up with water that would take months or years to evaporate.
Now you freeze the tube and the water within expands around around 9% at 30,000psi……shit gets broken.
It would have been much stronger if hand laid if they vacuum bagging to remove bubbles.