Sure. Every spinoff they made outside of Captain Toad ranged from mediocre to awful. Hyrule Warriors, Happy Home Designer, Amiibo Festival are not good games. As far as rushed software, see Mario Party, Mario Tennis, Star Fox, etc.
I'm not sure what else you would call Star Fox, even without the control issues(why would we ignore this?), the game suffers from other design issues and sticks far too close to 64.
Hyrule Warriors is a decent game, but it's not Nintendo developed. However, it is both critically and commercially highly regarded, so I fail to see your logic in regards to it.
Happy Home Designer is not a Wii U game.
amiibo Festival, I agree is not the best game.
Mario Party and Star Fox do not appear rushed. What would you define as rushed? They're both really polished titles (as is Mario Tennis) and are generally good games. Only Mario Tennis is lacking content and that could be used to determine it being "rushed".