Man people don't get the point of these ads. They're not for geeks. They're not for people that read tech sites. They're for average consumers who are probably rocking some old Windows PC and wouldn't know the first thing about tethering from their phone. Said another way, these ads aren't for people who post to MacRumors.
It just infuriates everyone who has an idea what a computer should be. How're you going to access your files, or even load your photos on an iPad? You need 3rd party apps like DropBox, which is a total pain to transfer anything on your device, it's the most frustrating experience. Even on Windows you don't have such basic issues.