Suicide Squad: 12 Last Minute Concerns You Won't Admit
6. It's Another Monster Villain
The single biggest problem with Batman v Superman wasn't the tone, the darkness, the characterisation or any of the other things people tend to leap on, it was the unearned escalation of adding a monster to the third act that had absolutely no resonance.
The reason why Doomsday wasn't any good in BvS wasn't that he looked like a Teenage Mutant Ninja Turtle, really, or that he was nothing like the source material, it was that he didn't connect. He had no humanity that we could identify perversely with (why Lex Luthor usually works and why Loki did so well), and he just sort of plopped into the plot to make the third act bigger and scarier.
In other words he was utterly disposable. And there's a very distinct sense that Monster T (if that's who is going to turn into the monster seen rampaging in the trailers) is going to be the same: a cartoonish villain with precisely no resonance and no lasting appeal.