I can't for the life of me understand why some people are shocked. Nintendo just doesn't care about graphics. They're actually offering a lot of what people didn't want with the Wii U - a weird hybrid controller thingy (only this time it's actually portable).
Yes, it sounds innovative, but the average person with a phone will most likely not want to buy a separate device that can't play their current games, is way bulkier, and has a lot less battery life. The Switch will still sale a few million units due to a lot of people's love of Nintendo, but for people thinking that this would miraculously be some sort of game changer, I'd probably get off at the hype train's next stop.