That was a good explanation and I'd say we're thinking the same. Obviously there isn't a legal action here, even if it's a pretty clear case. The only way a lawyer would make any money on this is to bill by the hour, which means it would cost a plaintiff potentially a couple grand (on the low side) to get restitution, which would be about twenty-five bucks (or whatever the bundle cost).
IMO Gree is on the wrong side of this one legally, but anyone who bought the gold was crazy if they believed they would be able to keep it. The precedent is set and everyone should know what to expect next time it happens. Including a bunch of threads complaining about the enforcement after the fact...