Did you read last issue? Gog is less a pet and more of a protector. But, like most times, he takes the role as pet. It's just convenient.
If done well, pets as protectors and companion animals can work very well. Last night; I watched ‘A Dog’s Journey’ that showed both of those things: It is an outstanding movie.
Cool setup because my magic 8 balls says ...FOR SURE....that at some point in the not so distant future Baby Grog will be reverting to full size. And certainly this will happen at the most inopportune moment for Pete.