Or more charitably, the manager had no idea and none of their reports had enough social skills to explain?

That is very charitable to the manager but incredibly insulting to the direct reports.

Leadership comes from the top. That’s what they’re paid for.

If there’s a culture of speaking up and nobody does, sure blame the underlings. But CREATING that culture is the responsibility of management.

Managers needs training, too, and I’m willing to give it if they’re willing to listen. I stick my neck out for really important or really offensive items, but it’s awkward when the culture isn’t there.