Their behavior will be seen as moral of course because humans have an innate tendency to judge and punish.
The fact that we have tendencies to do such and such doesn't make them moral. I don't think so and there's many example of people who don't think so which would make your point moot. I'm open to being proven wrong obviously.
But back to the main contentious point.
Dishonest people seek to manipulate and deceive and thus they seek more secrecy and knowledge other don't have.
Honest and benevolent people seek to share and teach.
Everything is on a spectrum here. I don't think Dan is saying we should make our private keys public. I think he's saying we should work to make as much of the thing with large influence to be public and transparent.