Oh for sure, but I'm guessing it's rare for an operator with modern aircraft to aggressively defer maintenance to the extent it sounds like is happening over there. Toyota has plenty of data about what happens to a Camry if it goes a few years with no oil changes (because people) but does Boeing have similar data to draw from?
We just had a roughly three year period where planes meant to be running more or less constantly were consigned to desert parking lots due to lack of travel demand.
