On the other hand it gives the Obama crowd a whole new set of reasons to vilify Grrrrreeeeeedy Eeeeeeeeeevil Corporations.
So it works for them either way.
I have a friend who worked for the Redwood National Park for eleven years, eleven months a year so they could keep him classified as seasonal and not give him the benefits package. He did finally get on full time but the govt has been doing this for years. They would scream about a private employer doing that.