The astronauts are cool with it. They are basically brainwashed to rationalize exceptional trust in all of the people and components so that they are able to focus on the task at hand.
I wouldn't say brainwashed, but they're definitely aware of the political angles related to succeeding with a career at NASA and almost always agree to play ball without causing trouble for the org.
That's a fair way to put it.
Though I know people who honestly believe the mantraof trust, to the exclusion of data.
Yeah, the astronauts aren't nearly as rational and clear-thinking as HN posters.