I did read your post, and I agree that prioritizing Hal over BOP specifically isn't a necessarily a good idea, but that doesn't mean rehabilitating Hal shouldn't be worth considering. I was more responding to your next statement.
That's once again reducing Hal to being just a straight white male (Marvel is still full of them, and people turn up to see them all the time) and holding up the poor adaptation as proof that he isn't worth the risk is a sore sport for Hal fans. It blames the character for the shitty product he was put in. Sorry, but as Hal fans, I and I imagine Johnny just get sick of all the excuses we hear that Hal shouldn't be used for a previous adaptation that wasn't his fault. If straight while male protagonists are not a novelty, why not put Batman on the back burner? He has more than enough media exposure, he can make cameos in the spin offgs, and the DCEU one isn't as widely embraced as he should be, and is more known for the "MARTHA!" meme than anything else. Meanwhile, re-introduce a new Hal alongside at least John, if not other Earth GLs.
It cannot realistically be proven, but if I were WB common sense would dictate that I proceed with caution after seeing the 27% RT score and the steep second week drop. It had a killer marketing campaign that lead to the big box office opening, but said marketing also promised a lot of Joker, and well he had like 5 minutes of screen time. Casual audiences are not going to be fooled twice, and combined with JL bombing, if they see the DC logo they are not automatically going to trust it. Especially when paired with a sequel to a critically panned first movie. If I were WB, I'd move the film's greatest asset (Harley) into BOP like they are planning on doing, and find other avenues to provide POC representation like John as one of the GL leads, do something with characters like Vixen, Black Lightning, Blue Beetle, etc.