So if I made a game on the free edition of Construct 2, can we publish it do places such as the Wii U, iPhone, or Android with the price being free?
this page compares the features and exporters you get with the free vs paid https://www.scirra.com/store/construct-2
I don't get why you can't publish Wii U Games
Develop games in your browser. Powerful, performant & highly capable.
It's simple. It's Scirra's business model. You still get all the platforms for a much cheaper price compared to other visual programming engines.
To be honest, if you can afford a Nintendo developer license to deploy to Wii U, you can afford a license for C2 or whatever tool you use to create your game.