Krall seemed to be Krall for mostly the same reason Khan was Harrison for a while. If Krall had had kept his human name and used it in the movie (or he looked more human from the start) I guess it would've spoiled the reveal at the end.
If at the end he had become just human enough again to realize what he was doing was wrong, that what he did to survive had taken away his humanity and made him a crazed sociopath fixating on what he came to blame made him that way, I think he would've been a far more complex and sympathetic character. Imagine how tragic his character would've been if he began to feel remorse or regrets at what he started, and sacrificed himself to stop it. Maybe he could've even have worked with Kirk and lived, a tragic figure spending the rest of his life on a rehabilitation planet to pay for his crimes.
As it is, he simply joins purely evil Trek villains TWOK Khan, Krug, Chang, Soran, the Borg queen, Ruafo, Shinzon, and Nero as the ninth baddy killed by our hero (Kirk or Picard) at the end of a Trek movie. Considering STID is the only other Trek movie with a real villain (I wouldn't count Sybok -- who it turns out did sacrifice himself for the others) it seems STID Khan got off lucky with only being refrozen.
For what it's worth, the idea of someone who was trained to be a warrior having to learn how to fit in in a peaceful world was far better handled on DS9 through the character of O'Brien.
If at the end he had become just human enough again to realize what he was doing was wrong, that what he did to survive had taken away his humanity and made him a crazed sociopath fixating on what he came to blame made him that way, I think he would've been a far more complex and sympathetic character. Imagine how tragic his character would've been if he began to feel remorse or regrets at what he started, and sacrificed himself to stop it. Maybe he could've even have worked with Kirk and lived, a tragic figure spending the rest of his life on a rehabilitation planet to pay for his crimes.
As it is, he simply joins purely evil Trek villains TWOK Khan, Krug, Chang, Soran, the Borg queen, Ruafo, Shinzon, and Nero as the ninth baddy killed by our hero (Kirk or Picard) at the end of a Trek movie. Considering STID is the only other Trek movie with a real villain (I wouldn't count Sybok -- who it turns out did sacrifice himself for the others) it seems STID Khan got off lucky with only being refrozen.
For what it's worth, the idea of someone who was trained to be a warrior having to learn how to fit in in a peaceful world was far better handled on DS9 through the character of O'Brien.