Why does that surprise you? I'm willing to bet over 50% have no idea what year Pearl Harbor happened.
History is not exactly a strong suit in today's educational systems. I just read recently where one school system was not going to teach pre Civil War US history as that period of time was irrelevant.
Whereas the little "news" blurb didn't go into detail on the "Whys" (God forbid we question "authority", news or otherwise...), I suspect the whole idea might rest on "political correctness" somewhere. Then, again, it could be that informing students that there really was a concept called "State's Rights" once upon a time might be a bit confusing to "young minds".
Either way.....
Halfback