You have to remember, this is NOT the Wisconsin State Supreme Court, but a district level court, of which the decision may be appealed.
Most union organizers are also protection racket (”community”) organizers as their weekend job as well.
When confronted, they will deny that is what they are doing, or course.
My understanding is that the Wisconsin Supreme Court has turned to the right recently, so hopefully this will be overturned.
Not so here in PA. The unions worked triple-overtime in the last election to elect a bunch of their stooges to our Supreme Court.