So... what? You're only proving me right.
Nintendo has more problems. Being compatible with engines doesn't mean that it will get ports...
When NX arrives, devs can publish their games on: pc, ps4, ps4k, xbone, psvr, facebook vr, ios, android, htc vr, xbone+.
Why should they add NX? The market is viable as it is without wiiu. Why the extra effort / risk for another port for a console from a party who hasn't been a friendly 3rd-party environment for about 15 years?
I wouldn't take the risk..