I had many clicks with my 200-400 until I figured out how to get the best AF Fine Tune value...by increasing ISO. I also used my 1.4x TC on the 70-200mm and 200-400mm in addition to doing them bare. I also had a number of software failures during tests because I was using a beta release. I ran the tests with VR on and with VR off. That also adds to the count.
If I was to rerun the tests now with all lens and one body, I am sure the count would be much lower.
If the manual had contained more tips for software settings adjustments when the number of clicks gets excessive with AF Fine Tuning, it would have made the tests go faster and use less clicks.