Happy birthday to Shipwreck!
On the matter of dog poop. Canine scat can be used as fertilizer. However, you can't simply say that dog-poop left on the lawn IS fertilizer. When you leave it on top of grass, it prevents the grass from receiving sunlight, and by the time that the grass actually sees any benefit from the poop, it is already withered and dead.
Basically, fertilizer is useless when it is above the ground. If you wanted to use dog-poop for such purposes, you would have to dig a hole, churn the dog poop in with the dirt, and then replace the sod on top of it. If you leave the dog-poop on top of the grass, it only serves as a stinky nuisance.
As to the subject of the Nintendo Super-Bowl ad, I'm thinking that Nintendo is focusing on a particular demographic for the system's launch. I think they are really looking to push the Switch early on towards people in their mid 20s to early 30s. On the one hand, I can understand why they'd think this is a good idea. That entire demographic has been making a hard push toward adopting more minimal lifestyles. A console like the Switch is actually an easy sell. It's portable, it's small, and it comes with everything you need to get started, even for basic multiplayer. It's a convenient way to have portable and console gaming in the same package, and is a tasteful alternative to the monolithic boxes that usually squat beneath a TV. Starting the commercial out with the young man rolling out of bed with his Switch is a good way to showcase how the device can be played anywhere. Having him playing it on the toliet would have been more true-to-life, but they probably didn't want to draw attention to that use-case.
It's difficult to predict if Nintendo will have any success with this approach. That demographic represents a considerable amount of potential, but they are also notoriously fickle. If they can actually get a decent chunk of sales from them, it could mean very good things for the Switch. That age group would serve as excellent word-of-mouth evangelists for the Switch. Many of them are taste-makers, and many more are young parents. Successfully persuading them would translate into quite a bit of reach.
I do agree that focusing solely on Zelda is a bit of a head-scratcher. Yes, it's one of Nintendo's die-hard critical darling franchises. And yes, it's the big arrow they have in an admittadly light launch quiver. But I can't say with any certainty how well that game will speak to the demographic they're trying to reach. Many of these consumers were brought up after the PlayStation brand had ascended. Nintendo series like Zelda aren't going to have the same nostalgic pull for them. And while Breath of the Wild has previewed fairly well, it is still a stylish game that does not have the spectacle factor of titles like Call of Duty. (which has always sold itself with explosions and escalating spectacle)