Ok two things with your list. First, nearly all were released between or right after big releases. Yoshi (which isn't particularly small frankly) and Amiibo Festival launched between Mario Maker and Xenoblade, Star Fox launched between Pokken Tournament and Tokyo Mirage Sessions #FE, Captain Toad followed up Smash and Bayonetta 2 (both GOTY contenders), and Paper Mario is not from what we have seen bad or underdeveloped and small so why is it even on the list?
Two, the existence of midtier titles is not the issue nor should we want them to go away. They add to the library, allow developers to explore ideas not suited to massive games (see Captain Toad and Kirby and the Rainbow Curse), and open up good business opportunities to get revenue to help fund bigger peojects.
And as an addendum, many of those games are good soooo what's the problem? Yoshi is regarded as good, Toad is critically acclaimed. I mean, more games that are good isn't bad.







