According to former Mashable editor Josh L. Dickey, Justice League director Zack Snyder did not step down from that job as was widely reported last June (including by Dickey), but was let go by Warner Bros. Dickey tweeted tweeted out the statement over the weekend.
"Since I'm shifting into DGAF mode, here's a hot one for ya: Zack Snyder was fired from the DCEU just over 1 year ago," tweeted Dickey, who wrote about Snyder's departure for Mashable at the time as their Entertainment Editor. "Couldn't write it ~quite~ that way at the time, but was able to tapdance around it [clumsy/oblique headline not mine]."
In Dickey's published Mashable article, the writer described it as Snyder getting a "significantly smaller role" at DC Films, and would "no longer have anything like the level of creative influence that got the franchise to this point." Dickey didn't elaborate on why he didn't fully report Snyder's alleged firing at the time.
In May 2017, it was announced that Snyder had stepped down from Justice League to greive for the death of his daughter, Autumn Snyder.
“In my mind, I thought it was a cathartic thing to go back to work, to just bury myself and see if that was way through it,” Snyder told The Hollywood Reporter. “The demands of this job are pretty intense. It is all consuming. And in the last two months I’ve come to the realization …I’ve decided to take a step back from the movie to be with my family, be with my kids, who really need me. They are all having a hard time. I’m having a hard time.”
Joss Whedon was tapped to step in to direct and write extensive reshoots which took place over July and August 2017. During that time, Snyder directed his own short film Snow Steam Iron, which he released on Vero in September 2017.
Justice League opened in theaters November 17, with Snyder credited as director and Whedon receing co-writing credit.