Only one of the pet items is legendary, so they could both have them. Although Odoe never had a hellish elemental. And while I don't recall how Odoe lost the legendary item (I'm pretty sure it was when he lost everything to hoarding code), I will admit that Serris went and got it sometime after that and was pretty sure it would be there.

But, I still don't think that's the same as telling an IC enemy OOC that you gave item X to Tahren so they can run get it and put it in a gear locker. Did Glik check that remote mob every reboot? No. But, this time he did. And he did it immediately. The fact that he figured Odoe and Serris were the same player (probably because no one else knew how to call a spirit bear) and Odoe had full-looted him was probably a motivating factor, but there's nothing wrong with that.

So, it's certainly not the worst offense in the world. But, it did bug me a little bit because I don't have any out of game discussions about any of my chars with anyone.