Basically all profs are dead for 2 expansions now.
Sure you can make money out of them... but profs shouldn't be about making pixeled money but about doing useful goods.
Professions have always been about making money while benefiting from them. If I sit around doing enchants, I can make 5-6k in a night... more if I'm lucky with tips. I can do other things while hitting my macro every 5 minutes.
I don't know, for cooking it kind of makes sense. I can apply heat to any chunk of meat and it will become food. It's weird if I can't cook chunks of meat from one particular animal, but I can cook chunks of meat from other particular animals. Depending on your ability and competence at the field of cooking, it can taste better or worse, which is why the highest level cooking recipies need spices and are fancy things. While you level up, it's like, "cooked fish parts".
Some of the vendor recipies to level up are like... sliced peaches. Another one is ramen. I could cook ramen when I was 10, you think your character can't figure it out?