They’re not going to have a hard time shrugging it off; they’re going to focus on this part:

The group does not allege the ballots delivered by couriers were fraudulent. Nonetheless, lawful ballots delivered by third-parties to drop boxes would run afoul of Georgia’s law,

Common sense says a group that was willing to break election law by continuing to ballot harvest after Georgia banned it in 2019 would also be willing to break election law in other ways—like faking or altering ballots. But as far as the legal system is concerned, it’s not proof any of the harvested ballots were invalid, even if you could figure out which of the ballots in any particular dropbox were the harvested ones, amid all the ballots dropped off lawfully by individual voters.

At this point Georgia state officials have doubled down so hard on everything being just fine that you can bet this is the line they’re going to take: “We’ll prosecute whoever did this unlawful ballot harvesting, but the actual ballots were legal; nothing to see here!” And the folks who don’t want to believe there was massive fraud will choose to accept that.