> Some will point out (and some have!) that I could have quite easily saved myself a lot of time, hassle, and lost earnings at this point by just quietly holding on to the extra Switch and saying nothing to Nintendo about it. It certainly would have saved me a lot of stress, but it was morally not something I’d ever consider.

There is no room for morals/ethics when dealing with faceless mega-companies.

You are not dealing with an individual here. Which individual would demand you to be home all day waiting for the courier for a mistake they made?

What I would do is store the parcel away unopened for a few months to a year. If in the mean time somebody asks it back, they can have it, otherwise it would go to the trash.