Sure one founder often ends up dominating the decision-making if that is how one wants to look at it. I look at it as more like who has more experience to make a particular decision - I'll question my coding partner once about his choice of platform but not twice if he insists; similarly he trusts my business decisions even when he shares his views.

This post does little to prove one founder is better than two. If anything, his examples are evidence that most top names have co-founders.