In order to study the art of human rationality, one must make a solemn pact with themselves. They must vow to stop trying to will reality into being a certain way; they must vow to instead listen to reality tell them how it is.

Nobody asked me to take either vow. Doing so isn't in the spirit of this community. The only reason someone might vow is to create a precommitment. You didn't make any decent argument about why this is a case where a precommitment is useful.

There nothing to be won by using imprecise language when one wants to teach clear thinking. Simplicity is a virtue.

They must vow to stop trying to will reality into being a certain way;

There nothing wrong with willing reality to be different. It leads to actions that change reality.

Rationality also is about winning. There are cases where the truth isn't the most important thing.

This whole example suffers from what Nassim Taleb calls the ludic fallacy. Balls in urns do have fixed probabilities but in most cases in life we don't have probabilities that are known in the same way.