Yeah and the Yuzu people had made something like 4 million bucks on the project too. When you start making serious cash off of tools for piracy (and when we're talking about a current-gen console that's essentially what it is, not a tool for preservation like older emulators) then you should expect some heat to come your way.

Nintendo has always been a bit on the bastardly side of things when it comes to fan projects but I can't say that I blame them for going after Yuzu when they felt like they had a winnable case.