I dont think it will be too much, especially if only you could see the moogle. Not sayin make it appear for everyone, cuz then there would be too many moogles around at one time. Only you can see it, just like only you can see your retainer when you summon it at the bell. Adding the moogle appearance would make it more interesting, and there would be no question how your mail is in EVERY mailbox in the world somehow (wow....). and moogles are cute.