You're leaving out critical information. It's "the union and business agreed to a labor plan that can require overtime in specific conditions written into the

You're leaving out critical information. It's "the union and business agreed to a labor plan that can require overtime in specific conditions written into the labor contract. Rogue employees are violating that contract rather than renegotiating it under the terms of their union agreement". This is a nothing story. Workers violated their union employment contract, and a court said "yep, they're violating their union labor contract".