I think its actually rather important that Nintendo bundle games like Fifa and COD, thats a big part of how people begin to associate certain franchises with certain brands.
I'm not sure A Fifa/NX, Bundle on its own will work but if Nintendo added one of their own it with of their own titles and covered the cost I think it would benefit them in the long run. An NX+MArio Kart+Fifa bundle would do really well.