I find it odd that a tribunal ruling is weighted so heavily in this document. The criminal tribunal about war crimes in Bosnia was hardly set up and empowered to settle differing interpretations of international law.

The Nurembourg trials get similar respect elsewhere, even though their rulings' standards - if applied to later conflicts - demand the incarceration or execution many, many never incarcerated Western politicians, such as the entire Neocon gang.
In effect, such rulings only seem to carry much weight if the court was set up to rule on the IL question itself, not too rule on actions.