I feel like devices like this aren't really under a false pretense though. Most people who would pirate games like this probably wouldn't buy a third party device so they can copy a friend's cartridge so they can emulate it, they'd more likely just download it and skip the middle man.
The only real way I see it being used primarily for piracy is in areas where Internet activity is heavily monitored/restricted, or broadband isn't available/accessible. Otherwise a 1 month subscription to a VPN and a few gigabyte of Internet usage is far cheaper and easier to a pirate.
You're being just as dishonest as the people you accuse in two different ways: there are people already in the replies to this comment admitting to the same things, as well as making unverified claims that "they're actually pirating, they just won't admit it"