Well I stand 'slightly' corrected! Lol its a classic controller redesigned!
The video also says it's basically a pointer device and as i said earlier, it cannot remap the buttons required to be used properly even on a Wii U so I am correct... It cannot be done and your back to either Dolphin Emulator or injects on Wii U if you do not want to use a wiimote and nunchuck.
That would work as a classic controller on wii injects but I'd avoid all 3rd party ones as they are notoriously crap.... That video even agrees!
If you have a Wii U you could try HID to VPAD which allows other wireless pads to be used with a separate adapter for controlling Wii games but again, no gyro or pointer functionality is available.