I mean, what's the point of saying who he is is not important if we already know him? Would it really be so terrible to say "Hello, it's me, G'raha! Let me explain... No, there is too much. Let me sum up..." if the WoL knows him, or, in the case of people who haven't played CT, "Hello, my name is G'raha Tia, I'm mates with Krile, Cid (or whoever we know). Let me explain... No, there is too much. Let me sum up..."* Admittedly the latter doesn't give a whole room for trust to be established, but the former certainly would make a knowledgeable WoL shup and pay attention. It's silly not to: you don't lead a WoL a merry dance if they've worked with you before and you want to work together again. It's not expedient.
Well, alright, you could. But I don't have to like it, G'rahaNotG'raha and you'd better have a damned fine reason for doing it before I call you stupid several times over whilst smashing your ridiculously ostentatious crystal chandelier into many little pieces.
I know from the developer PoV I might be being a bit facile, but I figured a few extra words plus a extra small dialogue branch wouldn't be too much to include if this is someone we already know.
Feh. It's a crystal clone grown in his likeness and sent out to do stuff and/or inform him of when he has to unlock the door to the CT. Maybe there's nothing else to do but grow crystals when you seal yourself away into a crystal-based structure. The rate of growth is accelerated through aether, explaining what's going on with the current aether situation. Or something (I have no idea, it mostly just struck me as a bit daft not to (re)introduce himself in one second if it's a verifiable someone we can check up on or already know, and the rest is mostly bobbins off the top of my head). Also, this is why no cat-ear flaps. The clone hasn't cloned those, or failing that, it
is G'raha, and his ears crystallised and were lost in an incident involving a party on one of the staircases in CT. All work and no play, or something. Oof.
*Thank you, Inigo Montoya. A never-ending source of quotes to badly mash.