Do you think all those ballots were properly filled out? Or that they even exist? The reason for the media drumbeat for Trump to concede is to avoid any of this being looked at.
Nope but it doesn't make any difference. If all that was filled out is Biden for president and no down ballot votes, then it will count.
The ballots exist. That's why the suitcases were rolled through the doors and vans pulled up in the dead of night.