I think there’s a risk that explicit computations might lead both your audience and yourself to overestimate your own confidence.
Moreover, doing them in a way that’s well-calibrated to potential sources of risk and error is a skill, and I wouldn’t want to suggest to people giving presentations either that they should make something well out of their field of expertise an important part of their talk, or that they shouldn’t give a talk if they’re unable to accurately compute EVs for the things they suggest.
I think there’s a risk that explicit computations might lead both your audience and yourself to overestimate your own confidence.
Moreover, doing them in a way that’s well-calibrated to potential sources of risk and error is a skill, and I wouldn’t want to suggest to people giving presentations either that they should make something well out of their field of expertise an important part of their talk, or that they shouldn’t give a talk if they’re unable to accurately compute EVs for the things they suggest.