This is called Duck Syndrome. >[T]he situation in which the sufferer looks completely calm on a superficial level while in reality, they are frantically trying

This is called Duck Syndrome. >[T]he situation in which the sufferer looks completely calm on a superficial level while in reality, they are frantically trying to keep up with the demands of their life. It's pretty common in places like the one you described. Pristine external presence makes constructive feedback ungrateful or contrarian, leading to everyone struggling in silence. I think the terminology is most associated with Stanford, since students work for several years to get entry, only to realize that it can be a harsh environment.