I recall that a lawyer who talked about how they were developed and explained how they work, came to that conclusion. The tests are completely subjective, and the way they are graded means that unless you are an Olympic-level athlete, you will fail it. Can you balance on one foot without swaying or puting the other foot down (even when you first start and find your balance), with your eyes closed, for one minute?

Might I suggest that you research it and post what you find.