I didn’t make the claim you’re arguing against, that was someone else. But the answer to your question is: partially The reason you can’t change it overall is

I didn’t make the claim you’re arguing against, that was someone else. But the answer to your question is: partially The reason you can’t change it overall is simply airline policy for business reasons. But the reason you can’t change even a misspelling within the last couple of days before a flight is in fact security related.