Haven't even gotten around to watching the latest future episode, but man it sounds like everything I had hoped for: More brainwashing!
...Except not. I insist that brainwashing is a plot point that shouldn't be used under most circumstances, since it is a dumb ass-pull that somehow feels even more out of place than Nagito's luck, for crying out loud. It removes agency from a character, and doing it en masse only helps highlight how little importance any characters had in the DR3 storyline except for Junk-o (I've honestly gotten tired of her by now). Still, even that pales in comparison to Juzo keeping his forbidden crush a secret over stopping a girl who's brainwashing people to bring ruin and chaos to the world. Why did every single character in DR3 have to keep such an iron grip on the damn idiot ball?
In the end, it actually looks more like crappy fanfiction than a legitimate, honest attempt at tying loose ends for the fans of the series when all's just being handwaved with "the people who could stop Junko were all brainwashed, oblivious and/or stupid". We didn't get any kind of attachment to the 77th class, HinataxNanami felt overly forced and boring, Junk-o's plot relying on a mass-brainwashing video was stupid and the student council killing game didn't even feel like that much of a tragic event when she supposedly could've brainwashed people with a stupid Monokuma Theater clip playing in reverse (and the same holds true for Nanaki's role as the sacrifice to supposedly "complete" the video that drove the 77th class to despair).
Then there were even great inconsistencies within the supposedly flawless brainwashing video when Chisa failed to succumb to it even as she was restrained and forced to watch it, and had to get her brain poked by Mukuro to complete the process for some stupid reason. Then, the 77th class were somehow paralyzed by Junk-o's second video (I guess the v2.0 patch removed the need for physical restraints), which was even more stupid, and the best part with the second video is that it was able to insert suggestions within live footage, for crying out loud! Asspulls can be bearable if used with moderation or for a good enough reason, but the magical brainwashing videos that are holding both Despair and Future sides hostage fail at both criterion, being little more than a magical plot device that can do whatever because the writer willed it, logic be damned.
tl;dr: DR3 is so despairingly bad it hurts, and I only wish I could un-watch it.