The whole post sounds fake as hell. That isn’t to say that the stuff within it can’t be true, but it just plainly reads as pure speculation being passed as fact.
And honestly I skimmed over the WB/DC stuff the first time I read it. But that just doesn’t make any sense, right? Why would Disney sabotage the final film in one of their biggest franchises just so that it’s director wouldn’t look as hot when he took on his next project? Fake.