Salmon caviar is already a thing via Barbarian Fishing. You even get cooking xp opening the fish with your knife. This is literally cooking and not a new skill. I would support making meat cutting be a part of preparing to cook the cow you slew in the Lumbridge farm.
The more we move along, the farther from the traditional theme of the game we travel. I still believe this could be a great skill that fits right in the the very beginnings of this game.