Firstly, the name would obviously change to Hunters Call Contract.
Now onto the why. Hunters Call currently only really has fishing as consistent gameplay, and needs a voyage. Now, you could create an entirely new voyage, but these take time and effort, and there is a much simpler solution available.
You see, no one does Merchant Contracts anymore outside of newer players, because everyone knows the other voyages are easier (less RNG) and better paying. Even early on you should do cargo runs instead.
So, we have a voyage no one does for it's respective faction and a faction in need of a voyage. Give Hunters Call this voyage instead, and you hit 2 birds with 1 stone.
It even works thematically, as you hunt for the animals and kegs, and it's called HUNTers Call. Kegs would also be useful to them for bigger hunts.
Personally, I think this is a great idea, but I also think people will disagree with me and well, this is a discussion, so bring on the disagreements ;)
