It makes sense to me that all CNJ spells have the same animation because you are calling upon the power the same way for all of them. I would have a problem with THM, CNJ, and ARN (is that the correct abbreviation?) all having the same animation though. I'd be very happy if a job's spells had a different stance than its respective class' spells. Of course this is largely because I really like the new CNJ spell animation.