Do you think people need to be publicly reprimanded by doing a voluntary job poorly likely out of not understanding the instructions and not out of malice?
I dont know about you but I have been taught for years that give praise publicly and criticism privately if you want to be at all successful in supervising anyone.
Saying two people did a bad job at keeping score isn't publicly reprimanding them. It's explaining the issue without bull****. If they called them out by name and said blame these people that's publicly calling them out.