I also believe that people should hear different point of views. Thanks for sharing your story!
But hopefully people also realize that the existence of a co-founder doesn't mean that there is no clear leadership. YourMechanic would not be feasible without my incredibly talented co-founder, but the buck still stops with me. I talk to my co-founder & team about big decisions, but I make and take responsibility for all the decisions.
Having run different businesses for 5 years as a single co-founder, I have found that there is something magical about having the 'right partner' (in my case, brilliant + 100% dependable).