Please read the whole article first and then post here. You will see that this teacher actually comes with a reasonable solution to the problem (described at the end of his article). Please don't post without RTFA.
As another poster mentioned, please read the article, the author did not give up so quickly.
I think it is sad but telling that the author gave up so quickly on what is (as the OP pointed out) the basic expectations of his job, but it is also telling about the overall quality and current state of ECE departments that cheating is so prevalent. The solution isn't however, to pursue cheaters but to change the environment, but that isn't going to happen if every professor gives up after his or her first kick at the can.
I apologize that this partial rant isn't very constructive but I'm far to tired right now.