My two cents is that Novak should have some Quality control and if they send out sub par products then they should be called out for it. I'm sure they all do it from time to time, but I'm all for slamming them when they do. It will keep them on there toes. If Novak didn't ship two crappy motors than this post would not exist. Put the blame where it should be.
Someone at Novak didn't do there job. End of story. It is all well and good if they send him new ones, but it should not have happened to begin with. My customers give me crap if I give them bad products on occasion. It teaches me to be more aware of what I am giving them. If they lose business because of this post, then so be it.