So cause crafting isn't fun we should have a shop that sells the stuff. Because farming mats takes time that we would rather spend doing other stuff we should have a shop for this? Because i'm a beastmaster and can't cook my own jugs or pet food we should have a shop for this? How about my hands get tired of holding a controller to play the game can we auto pilot mode please.
Seriously, I leveled my cooking to support my BST. If BST's can't find a way to get the jugs and food they need I say they aren't trying hard enough. Yes farming for mats to make your supplies sucks but guess what, that's part of the game.
In a sense your logic would apply to this situation. Hey SE, i hate running around farming my popsets to fight NM's to build my empyrean weapons, can we just have a shop so i can buy the Briarus helms, the Carabosse gems, the Glavoid shells, the Chloris buds, etc.
So as you can tell Pet Shop idea is a big X imo. Don't like the supply of BST items available on your AH on your server? find ways to combat it even if its farming your mats and having people craft for you even though you rather be doign something else. Goes back to the old saying "life's not easy"