There was a goal. The goal became PR. Someone in management began to believe the PR, and turned it into a promise, predicated on 'and then a miracle occurs' (the engineers figure out how to do some things that haven't been done before). The engineers keep trying to explain how nobody has done this before because you can't. To do so involves violating the laws of physics or Information Theory. Anyone who cracks this problem deserves a Nobel nomination, so that probably isn't us.
Middle management is stuck in the middle because someone has made promises we can't keep, and they either make it worse or help cover it up by playing for time.
You either solve a different problem that has similar behavior (or at least, until researchers discover Meltdown), or you slowly reset expectations until people are chronically grumpy but nobody is yelling.
It's probably fairly commonplace.