That's not a realistic goal for most non-trivial real-life situations.

Here we run into the difference between threshold goals and directional goals. The above was a directional goal.

I have a nasty suspicion that trying to "crush the uncertainty" will lead to overconfidence bias.

Hence the very small lip service paid with "unjustified overconfidence is even less cool". Of course that could use some expansion.. Maybe in a different post.