In defence. Just suppose that the installer was right and that the work order was wrong as he claimed(I believe there is a thread to that effect posted). In that case he might not have had right equipment on his truck If the retailer is cheep and only will send the tech with only what he needs for that day. The tech is now faced with a dilemma, He can call and reschedule the job, which will result in lowering his completion rate or complete the job hoping that the customer wont care as long as he is getting the programing that he ordered. Your roof is easy to work on so again you get the junk because any tech back out there will have an easy time if any changes need to be done. The legacy set up will work and except for some other problems would work very reliable for many years. There was one other thing that was in his favor he bolted the mast to the frame instead of to the roof.
Unfortunately the dangling sw21's will pull the connectors out very soon, and there appears to be no sealer on the bolt in the roof. It appears that the top 2 bolts are on the seam at the peak and aren't real secure, looks like a potential leak. I will bet that if you follow the lines there is no grnd. I have seen this type of install too many times.
And if what I conjectured above is true the tech is not to happy with his Co. because he was put in the situation where he looses no matter what he does, so he gets it done and leaves as fast as he can.