Lindell's lawyer claimed that somehow the preliminary copy (before human editing) got submitted to the court - that they actually did the work to fix it, but then slipped up in submitting it.
I could see that, especially with sloppy lawyers in the first place. Or, I could see it being a convenient "the dog ate my homework" excuse.
Having not looked into it, I would guess that his lawyers know they aren’t going to get paid any time soon.