That document you linked is research on archery as used in warfare, not archery tournaments. It does not cover any kind of tournament. (Though I admit I didn't read every single page.)
And yes, we all know that nobles used archery in hunting. No one denies they did.
Please find a historical example of an archery tournament for nobles. Something where, say, the Duke of York picked up a longbow and competed in an archery tournament. I don't know of any, but then again I've never done any kind of extensive search, either. If you can find one, then that adds some substantial weight to your request.
