The article seems quite incomplete without even mentioning value-of-information. Instrumental and epistemic rationality have the same goals when the VOI of learning things is positive, and opposite goals when the total VOI is negative. Now, it may be hard to capture the VOI of, say, movie spoilers and truths that are bad for you, but the typical piece of information is positive VOI. In other words, most information merely lets you make better choices, as opposed to influencing your experiences in a predicted-in-advance negative manner.

This is basically the entire reasoning for going on an information diet. Not all truths are of equal value to you, so if you can deliberately get only the high value truths, you're consistently better off.