"We could... however, I'm not sure if he's begun studying the language of the Eidolons, or sought any of them out." So, that would be an issue. "And who could say how long until he understands them completely."

So, they could program a partial translator in the beginning and progressively develop it.

"So far, there's nothing to suggest King Moggle Mog is related. Next time they appear, we'll find out."