NB in WAR has never been blocked/banned since its introduction.
You don't know much and are trying to tell stupid things to people who have been playing this game for many years and have always used NB.
You are one of those who say NB is a one button game lol.
I used NB on every character archetype and still had 3x12 skill bars. 1-12, alt +1-12, shift + 1-12 (plus some by click staff).
Maybe it's just due to lack of knowledge of the game and you don't know that using some abilities that are in theory better, without using NB gives a worse effect than theoretically worse ones e.g. Choppa GFDSS vs slasha, slasha vs throat slasha ect. If you perform an action half a second too early or too late you lose all GCD. Do you know what this means? Probably not, because using aoe mindlessly does not require anything.
I know that lack of NB doesn't hurt zerg players who spam losta choppin/flurry or wild swing. But it does bother those who demand more from MMOs.