Oh let's not start THAT debate again. WW, hitech and others with actual flight experience or experience working with these engines have already made it clear that there is NOT any time at those power settings before your engine blows up in your face. Over the course of a single sortie overheats will NOT affect engine performance like this. The only actual effect would be an ass-chewing by your crew chief and extra time in maintenance before the aircraft is cleared for flight again.
Overheats in sims are an artificial means of imposing operational procedures, NOT an accurate mechanical limitation of the equipment itself.
No offense here but you're assertion is flying almost in direct contradiction to real life evidence. At any point in time a system failure (i.e. cracked supercharger housing, defective cylinder, cracked fuel line, leaking radiator, etc...) could cause an engine to explode when War Emergency Power was enabled, either at the time it was enabled or when something caused a part(s) to fail. The documented effects of using WEP in WWII were predominantly excessive engine wear due and overheat due to the increased RPMs and in some instances when tolerances were pushed to the mechanical limits, engine failure. Very similar to the effects of a car engine exploding in a drag race (especially the top fuel dragsters). After every sortie the engine would be inspected for damage and if the WEP had been used the engine would be torn down and inspected inside and out which added to the amount of time the plane and its pilot was grounded.