And here we are again, having our pitchforks ready.
Maybe read the article for once. Nothing new about what happened there. We saw the same happening with the Switch 1 for years and nobody cared, but now it's a thing because we're all on the "screw greedy Nintendo" hype train.
Nintendo has a unique way to track pirates games via their cartridges' UIDs. That's nothing we should really be surprised about, given how long this system is around.
Maybe, just maybe, blame the seller of that copied game. In the end, Nintendo quickly reacted - again, read the bloody article.