Interesting! 'Bent would probably fail most of them too.
When I was working with kinesiologists on my gimpy foot, they weren't too concerned about mobility in an absolute sense but they worried about imbalances. I was asked to do most of the stretches and balance exercises on just one side for a long time until they thought both sides looked the same.
I would bomb the tests miserably! Something I too am interested if there's a link.