I mean its a bit like the Kathleen Kennedy situation.
All the bad stuff came from her, but also the great Star Wars stuff currently comes due to her.
Same with WB, for all the bad decisions...they also made good ones in the last 10-15 years.
Batman,Joker,Aquaman,Doom Patrol,JG SS,BOP etc.
For all the "We give Zack Snyder the keys to the DC universe and want him to create our main DCEU fast and hard so we can compete with Marvel and get our bonuses" decisions, they also made "Give Matt Reeves total freedom to do his batman how he wants to" decisions.
But in the end, yeah its for the best if they would get replaced.
Another problem, beyond the studio, is that DC film fandom is far from united as far as DC films go and which direction they should go.
So when fans complain about the direction things are going , all WB hears are different factions, each with their own preferences, as opposed to a fanbase which is in agreement about one way to go.
Fans aren't really speaking with one voice, aside from "WB sucks".
Other than that, half the fans are yelling a screaming about "keeping the Snyder's vison ! " and the other half is yelling and screaming " Snyder vision sucked, lets move on!". Then there are fans somewhere in the middle.
So trying to persuade a gun shy, confused studio, with a polarized and fragmented fandom, isn't gonna be that effective.
In that sense , it also kinda reminds me of Lucasfilm and The SW fandom in which you've got a studio with big hits and misfires , combined with a divided fandom who seemingly can't agree on what the best course of action should be.
Though, to be fair, the SW fandom is far
more divided than the DC Film fandom is Imo.