You missed the plot. They found a loophole and are probably conspiring to halt the Union. One company says they have to wait for the other to negotiate, the other company says they won't negotiate because they are not their employees. The whole process enters into a permanent delay, workers get fucked by both companies for months. This is a tale as old as unions have existed. It's one of the reasons why in most sane countries, unrestricted outsourcing is not allowed and outsourcing in general is heavily regulated. It's one of the most common tools companies use to abuse workers and avoid responsibilities.