You know, that was a court filing—and not just on any case. It was an extremely important case.
There shouldn’t have been so much as a typographical error.
I have seen MANY errors in court filings. Should not ever be one, true... but it happens. The more complexed and rushed the filing, the more likely it is to happen.
I have had to explain similar errors in depositions and in court and have identified errors that completely reversed the correct statement both in legal and medical documents.
What really matters is if there is evidence of fraud, not if no typographical error was made. Witnesses are required to testify about such exhibits so there is always the oportunity to clarify what exactly an exhibit indicates.