Why the score is so low for plunderer?

NothingFound said:
There's some big problems when it comes to Plunderer.
To start with, It's a Horrible adaptation of the Manga, all of the fans that came from the manga, were straight up disgusted or displeased from all the wrong decisions they made on the order and way the Story (Which was the best part of the manga) was presented on the Anime.
So to start it wrong. All of the people that came from the manga disliked the Adaptation, but that's not something too rare on anime adaptations (sadly).

There's also the portion of people that didn't understand the true nature of the Anime and without looking more than 2 chapters said it was Ecchi trash.

The other big problem with altering the Story presented by Minazuki Suu, It's that some stuff didn't make much sense in the Anime and the rushed down nature of Anime made the Actual Plot Twists and great moments of the Manga feel like some cliche or joke point on the Anime.
So a lot of people that at least gave it a chance saw all this as utterly wrong and bad.

The low quality of the Animation at moments didn't help either. Personally I don't mind but just look at how people rage and meme over 3 secs on Nanatsu no Taizai from not being perfectly animated, now imagine how those people reacted to the numerous battles were Rihito wasn't moving fluently.

Don't get me wrong I'm a big fan of Plunderer but there's not denying they did a bad work at the Adaptation and if you combine all the Flaws it had, It obviously won't be liked by the majority.