Looks like I was actually right in the first place and it isn't just a Snyder fans thing. One of the worst reviewed movies in MCU history. Beginning of the end of the comics movies golden age???
"One of the Worst reviewed Films" is still over 70% as of right now, and the MCU is solid enough that only three movies are under that, and only one MCU movie ever has been rated Rotten (Eternals). There are six DCEU films below 70%, and five of them are Rotten, including the only two Snyder films that actually made it to theaters (MoS and BvS).
There is literally no evidence that the "comic book movie golden age" is anywhere near ending. No Way Home made apparently 1.8
Billion dollars worldwide, and Multiverse of Madness over 900 million, both without China. Shang Chi, which opened while we were still pretty much in full pandemic (not that we still aren't, but it was back when most people would still acknowledge it) made over $400 million, also without China. So, unlike some mega franchises that need China's box office to make money (Transformers and Fast & Furious come to mind), superhero movies are doing great even without that huge market.
The only MCU films in recent history that maybe didn't make much money (if we include the probably marketing costs)
might be Black Widow and Eternals. But Black Widow has premiere access numbers that we don't know, and both films were fairly low rated MCU films (but only Eternals was Rotten) that released during pandemic times. You can't count Sony's low effort, reheated shit like
Morbius against superhero films in general (and even then, Venom 2 still made over 500 million, even with worse reviews then the already poorly reviewed first film).
The only (in my opinion) legitimately great superhero movie that has financially failed recently was The Suicide Squad, which released during the pandemic and doesn't seem to have made its money back. But the film itself was great, and WB/DC was apparently happy enough with it to give James Gunn at least two spin offs, and Peacemaker is getting at least a second season. This also all happened while WB was (and still is) in a huge flux behind the scenes.
So, yeah, comic book multimedia stuff in general is doing just fine, and Snyder's obsessed DC fans are basically not a factor in anything but review bombing and generally being obnoxious.