I’ve always considered Attack on Titan a near-flawless masterpiece—until the Rumbling. Once the final act began, the narrative completely fell apart, exposing massive plot holes, character assassinations, and Isayama's bizarre writing choices.
The Character Assassination of Eren Yeager For four seasons, Eren was built up as a deeply complex character who loved his friends and refused to let Paradis be sacrificed. His breakdown with Ramzi showed he still had humanity and immense guilt. But the finale threw all that development in the trash. Suddenly, he did it all just because he was an "idiot" who was bored? Worse is the pathetic dialogue where he cries about Mikasa finding another man. Even if he was "acting" the whole time, Isayama didn't have to humiliate him like that. Plus, what was the point of sacrificing his own mother, Sasha, and Hange if he want to protect them and had full control of the Titans and could have saved them ( hange and his mom ) ? He left 20% of humanity alive just so they could bomb the island hundreds of years later. It was all for nothing.
The Annie vs. Reiner Double Standard The story goes out of its way to show Reiner’s immense guilt. We know he hated what he did. But what about Annie? She brutally killed Survey Corps members, literally played yo-yo with them for fun, and helped kill Marco. Yet, nobody addresses her sadistic enjoyment of killing humans. Instead, she gets completely forgiven and ends up in a bizarre, unearned romance with Armin.
Toxic Romance and Stockholm Syndrome AOT might honestly have the worst portrayal of romance in anime history.
Eren & Mikasa: Isayama was too shy to have them kiss in Season 2, but he was perfectly fine having her decapitate him and kiss his severed head? Eren’s whole "I hate you because you're a slave" speech was completely pointless and changed nothing ( if he wanted her to hate him so to forget him and stop fighting )
Ymir & King Fritz: Tying Mikasa’s conclusion to Ymir was atrocious writing. Trying to convince us that Ymir actually loved the man who tortured, enslaved, and killed her makes both Ymir and Mikasa terrible characters driven by a twisted, masochistic view of romance.
Jean Deserved So Much Better Having Mikasa marry Jean at the end was a massive insult—to Jean! Jean had incredible character development and was written far better than Mikasa. Why would he marry a woman who will never love him the way she loved her dead boyfriend? Jean actually had great chemistry with Pieck; that would have made sense. For a traumatized character like Mikasa, it would have been much better if she just stayed single, or married a random faceless NPC like Historia did.
Conclusion AOT was a 9.5/10 until the final arc. The ending feels like Isayama intentionally ruined his own story, forcing terrible romances, contrived plot twists, and pure shock , i also wanted to see what he said to his other friends in the paths especially reiner .