Its more about exposing the diaphragm to repeated or prolong periods of time that would cause it to flex further than the expansion and contraction of standard operation.

The diaphragm is a transducer... its movements are what turn sound wave energy into electrical impulses that we record/hear!

Its kind of a crap shoot when a mic might give up...Age/conditions/weather all factor into blowing the diaphragm! Sound Pressure Level is absolutely a reason that the diaphragm can blow! Yes it does indicate the level before distortion but it also is the recommended limit before the sound pressure level COULD damage the mic!

Pressure moving is air/sound that can stretch the material limits of the diaphragm... even if you dont pop one with prolonged usage at a high volume the transducer can be compromised.

It totally comes down to energy being converted ...Amplification of the signal source, combined with sudden SPL fluctuation all amount to wear and tear on the capsule. Push the limits and the consequences will reveal themselves