I would caution everyone about putting too much stock into this one revelation. Remember that Wisconsin changed the definition of "indefinitely confined" (whether rightly or wrongly so) to accommodate people too afraid to vote because of Covid. IIRC the argument is whether whoever made the change, had the authority to do so. In other words there were loads of people afraid of the virus because of the media instilling fear so many people used this option to vote. Now if those people went out and played football or whatever, that kind of disproves there were not afraid of the virus, but it could be just a small number of those 19k ballots. There are tons of Americans terrified of Covid so IMHO they would support a change like this to allow people to vote. Whether the change is legal or not, that is up to the courts but I believe they will grab ahold of this and defend the decision based solely on fear. They will then beat President Trump over the head with it saying that he wanted those people to go out and get exposed to the virus (or whatever).