[neatoman]

Originally Posted by Andrew NDB

Hm... I don't think that's really that big of a deal. Maybe Cameron and/or Rodriguez just didn't like that twist and what it meant for the Zalemites.

Spoiler:

The problem is that it's a very important plot twist and much of the story hinges on it after Alita gets to Zalem. There are two particular things that can't make sense if that twist is removed.

Spoiler:

The reason Nova is so dangerous is because unlike most Zalemites, who go insane if they learn the truth, he revels in it because it allows him to constantly clone himself and experiment with improving himself in numerous ways. He's essentially immortal and can do weird crap like put his brain-computer in his stomach to prevent people from killing him with blows to the head.

Spoiler:

This thing also also allowed for several copies of Alita herself to be made. In the sequel manga Last Order it's revealed that while she was under, her brain was removed and replaced with one of those computers, meaning that Alita from that point onward is a pure Android, while the brain gets a human body at the end.