The Wii U walked so that the Switch could run. I'm glad to see renewed interest in it. Now if we only had a decent emulator. I know Cemu exists but the compatibility of most games I want to play with it is atrocious.
But it sort of became obvious, the Wii U gamepad was just waiting for powerful enough mobile technology so that it could break free of the console. And then the Switch happened and I was so glad that Nintendo didn't miss this opportunity.
Dolphin is indeed fantastic for Wii/gamecube games though