In 2000, Al Gore's gambit in Florida was to put the vote in heavily Democratic counties in Florida in order to pick up enough votes to go over the top. Voting technology in Florida was such that it was reasonable to hope that there would be enough spoiled ballots that could be called Democratic to make up what was a very small margin.
That strategy would have no chance of success in the Supreme Court recount. Improved voting technology makes the count far more accurate. To win here, you have to throw out votes and, if you are Joanne Kloppenburg and want to throw out votes, you go to somewhere in which the votes were for your opponent, i.e., Waukesha County.
But she's got another problem. The margin is so large that you can't win through ballot by ballot examination. You need to throw out bags of ballots. Lots of bags. So you look for a flaw - any flaw - that will take the election from the voters and put it in the courts.
The latest seems to be the claim that some ballot bags weren't completely closed such that someone could have taken some out (or put some in) after the fact. But, if the ballots in the bag, correspond to the count and results on election night, it will be pretty clear that no one did.