I don't understand why they should give vouchers or free games away?
The Wii U has a great library of first party games. 2D Mario, 3D Mario, Smash Bros, Mario Kart, Pikmin, Donkey Kong, Wind Waker HD, Zelda U, Captain Toad, Bayonetta, Xenoblade, Yoshi, Kirby, Splatoon, Mario Maker, and loads more I'm forgetting. Sorry but they owe us nothing apart from better third party support.