I'm American, and I don't find this offensive. In fact I think most Americans would agree about how terrible our Internet services are. Our online speeds are atrocious. Fiber optic Internet is available in some parts of the country, but crappy cable companies tend to control the Internet in most of the country, including where I live. And yeah, they're the absolute worst.
But anyway, on-topic, I'm always fearful about the online capabilities of a Nintendo game. Ever since Brawl completely botched it, I guess I've been a cynic. But MK7 and MK8 run excellently, so I'm hoping Sakurai can pull off a more functional online experience in 3DS/Wii U. Having Namco help out doesn't hurt, either.