I can totally see how this can fly under the radar. "Cults" are common in tech, though not of this type.
I've received job offers where entire functions are all people who had worked together at a previous company and not hired through acquisitions. I've had teams where majority of the team is from the same university or class. More than 50% of the team having a common denominator is common and it usually starts with one person getting hired in a high enough position where their hiring decisions are not scrutinized.
I've received job offers where entire functions are all people who had worked together at a previous company and not hired through acquisitions. I've had teams where majority of the team is from the same university or class. More than 50% of the team having a common denominator is common and it usually starts with one person getting hired in a high enough position where their hiring decisions are not scrutinized.