What a Long, Strange Trip It's Been achievement (that some of you have done -- grats! -- and others of you are deciding to do in the next year), saying that something as significant as leveling up Cooking all the way shouldn't be required for what is basically an optional achievement. But Kisirani replies with as good an answer as you'll find: the achievement is designed to send you all over the world, including to some professions and abilities that you wouldn't be leveling otherwise. Especially because the achievement is optional, it's not out-of-place to ask for some cooking to happen. And I'll add that cooking is worth leveling anyway -- not only does it get you some nice buffs, let you use up some of the trash collecting in you bags, and hook up your guild or raid with some excellent items, but it's pretty easy to do, especially if you do it with fishing (which is also very useful by itself).
While she's at it, Kisirani also provides a nice tease at Pilgrim's Bounty, which isn't a part of the big meta-achievement anyway, but will have some extra recipes to find and cook, as well as a new Thanksgiving-style celebration (two words: "Turkey shooter"). Can't wait to see it.