I mean if we look at the releases and numbers, there's an argument for almost every console. You could say the GC and Wii U got LoZ releases as a finale, both of which were epic. The caveat of course was that they were next gen launch titles which takes off the impact.
For me, I'll go with "feel". Releases for the Wii U felt like oases in the desert, and by the end of the Wii U era I think a lot of people doubted the legitimacy of Nintendo in the console market. And yes it got BoTW, but it wasn't exclusive, and barely anyone got it for the Wii U. The last 3 years of the Wii U era felt like a slow death