In fairness, NADC is also at war with 7 other alliances--so I don't think the "Argent is the only AA solely engaged with NADC" argument fully works here. Also, other alliances like CCC, CRAP, TTK, etc. have yet to be countered at all. I'm sure this likely has a lot to do with the treaty web.
In the end, it is what it is. We're all at war, so let the casualties and GRL rise. :P Welcome to the battlefield! Enjoy your wars.