It might be the out for the Biden family to get something in exchange for Joe’s exit from the presidential race. There will be an uproar, and for the sake of party unity or some other bs reason Joe withdraws. He gets to quit with a shred of dignity, as opposed to being simply discarded, and the party gets to nominate someone with a prayer of winning.
If so, I hope the moment he is gone they say, “Nah, just kidding. No pardon for your scumbag son!”