If I can think of a reason to not do it, then I should ask why. If the reason isn’t explained to me it’s a much more logical conclusion to believe that the reason is a bad one. Or that the person telling me what to do is a moron. If I disagree with the reason but it’s not a harmful one then we can start determining if whether it’s meaningful enough for me to push back.

If “some moron says” means the thing we’re doing is going to go poorly, that should be brought to attention.