NX is more likely to get upgraded versions of android games than anything from ps4 or xbone. I'm sure if Nintendo beats the odd and the NX is a huge seller they will bother but much more likely it will get nothing and the same applies to many other publishers and developers I'm sure.
While the wii u had the runaway success of the wii before it to give hope that the wii u would be successful at the beginning the NX is following a huge failure and so far what has been released about the NX seems to make it less commercial than the wii u.
I can only hope Nintendo has some trick under its sleeve that will surprise us all.
Also Nvidia is a company that both Sony and Microsoft hated dealing with and has a history of being unreasonable with regard royalty payments.
It just feels this is the beginning of many such statements from publishers and to be honest who can blame them.