You're right, it is not controversial today that photographers have a copyright on their work. Which is why the monkey selfie is so important. In the monkey selfie case, a photographer did set up the equipment, which means that some of the parameters were indeed established by a human. However, the monkey actually created the picture, including the timing and body placement. The copyright office has determined that the work could not be copyrighted.

Which leads to the conclusion that at least in some cases,a human doing some setup is not enough to grant a copyright.