Remember Cooking Mama: Cookstar? The last chapter of the famous series that teaches you how to cook was found inside the eye of the storm. Between the removal of the title from the Nintendo eShop and the accusation of using Nintendo consoles to earn some money criptomoneta, there appear to have been other problems during development.
It seems in fact that the developer Planet Entertainment got one lawsuit by the license owner, Office Create, for not respecting the agreements of their contract. The developers have not only disappointed the expectations in terms of quality, but they also developed a PS4 version of the title without having discussed with the owners of the license.
Basically, no case of bitcoin mining or other strange rumors behind the withdrawal of the title from the stores. Simply: devs do devs stuff.