Maybe if you're talking about the general public, but no Lesswronger worth his salt is going to forget about these essential biases when attempting to compensate for how being in love may affect their judgement.

Rather, the point is to come up with principles and policies to follow, to compensate for those biases, knowing that, while they are high on love, they will not think or care to do so on their own. Mental preparation, "being set", is essential for avoiding mistakes while in mind-altered states.