They are expressing their opinions. I don't give them much more weight than I did to Merrill McPeak about Bush or Wesley Clark about anything.
As for Fundamentally Fair, I cannot comment. I have never seen their posts on this matter. I did a cursory search of FF’s post for the last four months and didn't see anything at all on this topic.
If the minutiae of the legalities are such that they contradict the bigger picture that is taught throughout the system, so that the JAG’s world and understanding is diametrically opposed to the world of the people leading and teaching the military structure, that’s a very, very serious “disconnect”.
It’s sort of like saying that the earth is spherical, except to scientists who do the calculations. If the calculations come up with the earth being flat even while the scientific community as a whole (as well as photographic evidence) says it’s spherical, then we have a problem because there are inconsistencies between the bigger picture and the minutiae.
If the military leaders and teachers (and the 4 legal references I’ve given) say the world is spherical (lawfulness of combat orders depends on authorization from the President), but the JAG’s say that according to the minutiae the world is flat (no presidential authorization needed for combat orders to be lawful), then there is a problem with how the minutiae (codes) are put together because they haven’t been encoded to say what everybody thought they were saying.