Era's Adventure dev says he didn't know Yoshi was a Nintendo character

The developer behind Era's Adventure, the mobile game that uses Yoshi as a main character, says that he had no idea Yoshi was related to Nintendo.

"Actually this is an indie game developed by one developer, so due to the limitation of effort, I purchased a cute character from TurboSquid, one of the biggest 3D asset stores, without knowing the background story of the character Yoshi, since I'm not a Super Mario fan." - Botond Kopacz

His story checks out as far as TurboSquid actually featuring the character in their database. I'm just surprised he had absolutely no idea who Yoshi was.

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