This right here tells me that no matter what, even if we have a perfect head coach, you won't like him.
Because a perfect coach won't tell you what you want to hear in public.
What you're failing to acknowledge is that there's a difference between "saying nice things" and "saying nice things *in public*" ... he's a no nonsense type coach by all accounts, if you trust the players he has coached in past and present. But in the public eye, when everything needs to be cool, calm, collected and balanced? He's not going to give the media anything to run with. And that's how it should be.
But you'll never acknowledge it because you can't get 100% guaranteed confirmation that he ISN'T like that in the locker room, despite every single account telling you that he isn't.