On the roster page on this site he is listed as a WR. His profile there shows some pretty impressive stats, receiving and on special teams.
He's about the same height as DJ Flick, though lighter. I know the coach and GM have said they want us to get bigger at the WR position, and I'm sure we will. But that doesn't mean every single receiver necessarily has to be tall. If he's a great player, he'll make the team.
I hope he does great. Why would anyone do otherwise?
Meanwhile, welcome to the Ticats and welcome to his brother too. Have an enjoyable stay, I hope a lengthy and successful one.