JWeinCom on 02 August 2016
The reason they gave I believe has to do with Miiverse. The front page of Miiverse, which I think is officially called Mii Wara Wara, has all the Miis gathering and talking to eachother. This, in their mind, was kind of like people hanging out around a cafe.
Basically, Nintendo was sort of looking for the second screen to be connecting gamers even in single player games. Like videochatting for help, posting about levels, etc. Like hanging out talking in a coffee shop. I think the idea was so that people who weren't necessarily going to go on game forums would have that feeling of being in a games community. Obviously didn't really pan out.
