The article directly says the opposite, and reinforces what GP comment was saying about the union not being helpful:
> Although Dugan, Shaffer, and other members say their union stewards on site helped press their concerns to management, they say that local and international IBEW officers who visited the facility scoffed at their concerns. Dugan says a local officer refused to file a grievance on his behalf about the mold in January. One worker requested to stay anonymous out of concern that union officials might withhold his future job placements if he spoke out.
> Although Dugan, Shaffer, and other members say their union stewards on site helped press their concerns to management, they say that local and international IBEW officers who visited the facility scoffed at their concerns. Dugan says a local officer refused to file a grievance on his behalf about the mold in January. One worker requested to stay anonymous out of concern that union officials might withhold his future job placements if he spoke out.