I mean, if the bucket is going to include gigantic pieces of nothing that looks like KFC which also remains overflowing no matter how many pieces are removed from it, that bucket might as well start talking because the commercial is already off the rails when it comes to realism. Not to mention the gigantic piles of potatoes and gravy and five-inch tall biscuits that are practically falling off the plate. Not to mention the dad agreeing that the $50 or so worth of food we see on the table is "a lot better than microwave hot dogs," which may be true but it's not like those are the only two dinner choices available to anyone. If you're going to include all that, a talking bucket is downright ordinary.
(I do like how, in one scene, two people are excitedly talking in the background instead of daring to attack the enormous mountain of chicken which absolutely dominates the screen- it looks more like a barrel than a bucket in MOST of this ad. And the beautifully choreographed scene where the kid is clearly waiting for his cue to reach for a piece of not-chicken. Seriously, was that the best take you could get, KFC?)