I think the nodachi is considered to be an exotic weapon for cRPG. That's why it stats have to be a bit sub par to keep its number down on the battlefield. Real weeabos will still use it while the min-max mass will more likely use other weapons.
I'm sorry, this point is completely invalid. I see tincans running around with nodachis, vikings with nodachis, saracens with nodachis and they probably could care less if it fits or not. Most people use it cause they like how it looks or they like the stats, not cause they're "weeabos". They go to the crpg website, browse through weapons and choose it from the great variety of swords there is.
Only the items team treats it overwise- "it should be nerfed cause OMG IT CAN BECOME TOO POPULAR, WE DON'T LIKE WEEABOO STUFF!!!!". Well, sorry, you should stop caring about it so much and consentrate more on the actual item balance.
By the way , the new russian stuff looks awesome, you better nerf it before it becomes too popular and everyone runs around in slavic armors. Just following your logic, alright .