I don't know if there's just one pendulum (I would at least say there's a chunk of people who are too emotional, and a chunk of people who are ignoring emotions too much), but none of what you are mentioning sounds new or unusual in regards to human nature.

People are generally fairly reluctant to challenge their own biases. There are some reasons for that, but this doesn't represent some abnormal pendulum swing.

Same for manipulating emotions for self-serving purposes.

This isn't a problem with emotions, it's a problem with incentives, and, well, corruption. Something like this can actually be very, very rational.

If people are acting in self-serving and self-preserving ways that's a fairly clear message that they do not feel terribly safe and do not trust the systems around them to accept their mistakes.

I don't think they're wrong.