You missed the entire point of the article. Even if it is their legal right, that doesn't make it ethically right.

Would you still be saying so if Nintendo closed all its storefronts entirely tomorrow and did nothing but sue other games makers with their vast reserve of patents, slowing the games industry to a crawl, especially for indie devs, and making it impossible to play any nintendo game ever made?

Some of the only remaining transcripts of Shakespearean plays were copied by those viewing the play, the equivalent of taking cell phone footage of a movie today. History has shown that art WILL be lost if effort is not made to preserve it and that ionate fans which Nintendo will describe as pirates will do more and be more successful than a company in doing so.

Surprised this article doesn't mention that Nintendo's official museum has games running on emulators on windows PCs or that the Wii Virtual Console release of Super Mario Bros appeared to have been ed from a ROM archive.

Nintendo has repeatedly tried to shut down preservation of their games while simultaneously benefiting from it.

On the palworld front, the most relevant patent was filed AFTER palworld was announced and BEFORE any pokemon games had used such mechanics. Nuntendo also holds a patent over the movement used in most mobile games (tap screen then swipe in a direction to move a character in that direction). They used this to shut down a 2 year old game they believed would compete with their mobile ip Dragalia Lost, which is itself shut down and now lost media.

Over the last decade, Nintendo has, more and more aggressively, become a patent troll, and it's a losing game for everyone but Nintendo.