He's 100% right. The post-Justice League era was basically just a free for all where everyone did whatever the hell they wanted, and the interconnectedness was an afterthought. The fact that Black Adam and Shazam 2 are coming out within 6 months of each other and there's basically no connection (outside of the Wizard's cameo in BA) is a shining example of this. Its pretty pathetic.

And people like to say "UHHH well Snyder had a plan!", but his plan was just 5 movies, with a few other supplemental movies on the side. If WB kept him on, what would they have done once Zack finished JL3? They wouldn't have a goddamn clue what to do.

Say what you want about Zaslav, but at least he was smart enough to see what a shitshow everything was and installed some actual leadership and strategy at DC.