the protagonist is not OP like other isekais, if you consider going back to the past one of his abilities, you are wrong. dying for no one is satisfying. and you see with the gestures, with his face, that he is not having a good time. personally i like the soundtrack when everything is already lost. Everything he does wrong and right is because you can't think straight after dying so many times, the guy is human and certainly all of us at some point in our lives get to break down like Subaru. That drives his bad choices and playing the victim at times.