which are not the norm across the industry for how IP issues are handled…
Go ahead and cite whatever you think the ‘norm’ is then.
Where else do you see publishers turning a blind eye to unlicensed remakes of their games?
The difference isn’t Nintendo being more legal trigger happy, it’s that their stuff is way more often being used in unlicensed ways so they come up more often in stuff like this.
But there’s a ton of examples of the same being the ‘norm’: