Hmm, i could now ask you: "What's wrong with Final Fantasy I to IX, various Dragon Quests, and all those games that are cross-platform on mobile and Vita?"
Why? Because that's a part of the experiences offered on mobile.
And (iirc) Iwata even mentioned that they want to have some of those mobile games and their devs on board for the new system. So, no denying your thought.
But we also have some solid rumors, post from users who appear to have knowledge in some way and even games "semiconfirmed" for the system, namely rumored Smash Bros Port, Zelda U cross-gen, Final Fantasy XV and the "semiconfirmed" Dragon Quest XI.
And again, back to jumping to conclusions. I see pictures of a device, that's simply not powered on. Everything else, be it haptic feedback, tactus-like morphing inputs, changeable input-sets for adjusting to your likes, is just speculation. And from this, you're like "Ok, they go mobile asap." ... from zero to 100%.