No, we don't know that at all. For example, I despise reality TV, but if I cancelled it all on a network I was in control of, does that mean I didn't consult other data first? I can assure you I would be a complete moron to do something like that without other research first.
Just because he (like all of us) has a bias doesn't mean he
solely acted upon it. Of course, if you have a quote of his stating otherwise, then I will admit I'm wrong regarding Didio.
Artistic vision is great, but it still sits in the passenger seat, while profit drives the car. Now I'm not arguing whether this is right or wrong, but that's just the way it is with companies as big as DC.