The thing about mob programming is that it tends to lead to GroupThink. Mob programming feels good because you're not alone in facing this problem, which is a very human response. However, feeling good is not a reliable indicator of progress. In fact, I would argue that discomfort is a sign of potential growth. As long as you're not harming yourself or others, discomfort can be a sign telling you you're headed in the right direction.
Either way, it's just a job and as long as you're behaving lawfully, there are no real consequences for you if you make poor decisions as a group. The project may or may not succeed, but at least you had fun, right?