Is Miyamoto losing his touch?

[KLAMarine]

HintHRO said:

Jpcc86 said:
How much can we credit Miyamoto for Nintendo's latest failures? Because he's not the designer or director of most of the games from the later years. In Star Fox Zero, for example, he acted as a producer, and "Producer" is such a general position. He may very well have little to do with the game itself.

It was multiple times stated that Miyamoto was the director of Star Fox Zero.

Not according to http://nintendo.wikia.com/wiki/Star_Fox_Zero/credits

SF0 had two directors, neither of which being Miyamoto, with Miyamoto as supervising director (I have no clue what that means).