That's a good question and I asked that myself. The answer I got was that it was an unnecessary expense at that time and can be Installed at a later date. The footers were necessary because the loud noise of digging them and pouring concrete would be disruptive to guests. Adding the switched not so disruptive,If they were putting in the footings for the DHS spur in the pictures you posted, then why don't we see the switches for that spur in the construction pictures?