Piracy isn’t relevant here. This is a fan-created work of art, and free for anyone who wants to play it. Nothing was “stolen”, and Nintendo is, as always, being a bunch of corpo fucktards.
much difficulty as there is finding good copies without issues that don’t come bundled with undesirable extras or restrictions to online play…
For clarity, this simply isn’t as “difficult” as you make it sound, especially since the subculture that supports such is both welcoming and quite helpful in its self-policing. With very little effort at all, one can be assured of quality results, and oftentimes even better than “official” releases (see: buggy AF Denuvo “protected” titles, etc).
And then you try talking to one of their fans/marks, and you just have to step away from the keyboard. The frothy gymnastics are, especially at this point, just sad. 😅