Evidence required. Without counterfactual, the plant seem safer than the county : 4.5% vs 5% as mentioned above. For all we know, they got sick while going to work due to the incidence in the county, and would not have been if they could sleep and eat at the plant.
Also, the workers may prefer being paid than on the government dole
But all the journalist care is making an incendiary article to present as class warfare what is just plain good sense: eventually, plants will be reopened