At my jobs I've seen bosses decide what works based on whatever they thought is best. How much do they get feedback from real users? Never. They're the boss so

At my jobs I've seen bosses decide what works based on whatever they thought is best. How much do they get feedback from real users? Never. They're the boss so they must know what's right. I assume this is the work of one major decision-maker at Mozilla who either likes this stuff or assumes that other people do.