They probably realized it would have gone down like this.
Players: PLEASE ADD NEW AVATARS LIKE CAIT SITH OR ATOMOS!
SE: Sure, it might take some time but we fully intend to do so!
Players: YAAAAY!
SE: Okay we've added Cait Sith and Atomos as avatars!
Players: OMG WHAT A STUPID IDEA, WHY DID YOU CHOOSE THOSE TWO!? UGH STUPID SE, WHY DOES SE ACT LIKE THEY HAVE CONTROL OVER THEIR OWN GAME OR SOMETHING? STUPID STUPID, OP, RELIC/MYTHIC/EMPYREAN. I WANT MY NEW AVATAR TO BE APOCALYPSE. HERP DURR.
SE: ...