Actually, it was an end run around the union-powered legislature. The bill was originally introduced by John Campbell(R), now in Congress. By the time the committees were done with it, they had added all sorts of union-favored provisions, like prevailing wage, etc. As such, the bill was withdrawn and never went for a final vote. Instead of starting over, they tried the PUC approach and apparently were successful, for the first phase anyway. Apparently there is still associated legislation that they want to pass.