@monkey123 My guess is that his ability is too strong and absurd so the one who gauged his ability(probably a female doctor) falsified the documents and told him how shitty his ability was to protect him.
@bosbarret "@monkey123 My guess is that his ability is too strong and absurd so the one who gauged his ability (probably a female doctor) falsified the documents and told him how shitty his ability was to protect him."
It could also mean that they can't comprehend the full extent of his ability. We see this in manga all the time where people think someone has a bland power only to find out using it abstractly makes the power more flexible and useful.