Yuzu was working well before TOTK was released. It was 5 years in development and has well matured. They also have had early access patreon builds for years and never had an issue, so I don't think it was that. They have always had early access patreon builds paywalled. Why would Nintendo wait so many years? I dont think this had anything to do with patreon, emulation, or piracy itself. I think they were sick of their games getting fully completed, all guides and playthroughs uploaded to YouTube before it was even playable on switch, to the point where it felt like what PlayStation was doing with CoD, releasing it a month early on PlayStation before X-Box. Like, PC player beating switch games before switch players when its a switch excuse. I think they got salty over that. This has happened to many first party games as of late, and Nintendo got fed up, and looked for an excuse to sue. I would be very interested to see specifically what their lawyer said, and why.