because the CS won't affect gameplay...

meh, this ring is not that big a deal in of itself IMO. 1-4 extra to your main or secondary stat is not that much when compared to FS or PACs.

Although if they start creating NX equips that boost Watk, we would have a problem (and we probably will =/)

Weapon attk boosting CS items would be a lot more unfair than stat boosting - low base-attk weapon classes (sins, slingers, and brawlers) would gain a much more noticeable advantage over high base-attk classes (warriors in particular, but archers and dits as well). Mages would more than likely get a weak attempt at a balanced m.attk item.