I'd also argue that this feature is lackluster and I don't think it would have had any success at all if it wasn't for the fact that you also get a figurine.
I'd also argue that this feature is lackluster and I don't think it would have had any success at all if it wasn't for the fact that you also get a figurine.
There is an Epona Link one that instantiates Epona into breath of the wild, but it definitely doesn't do that in Mario Odyssey.
Amiibo are cool. People like them because they're cool and the in game bonuses are a fun little extra. That's very different from the idea of trading in game item NFTs with the intention of carrying over their utility to other games.
Imagine you have an NFT for, say, a gun, let's go with AK47 because of its popularity, and say it unlocks it for the current Call of Duty (whatever that is now). Why would Activision make it work with the next CoD? Is it supposed to work with Battlefield too? Is there anything stopping people at Valve from giving you a cosmetic if you validate it, if they so desire?
So maybe this analogy works better than you realized.
Still though, if you pirate you don't get the actual official figurine, there are certainly other ways to implement DRM, consumers hate DRM, and despite Nintendo's well known aggressiveness in litigating and preventing piracy, they don't seem to care about DRM on amiibos, apparently because the data is not the core value-prop.