I don't think they reprint it. Would be retarded to use the same box and even if they do the work and use the same material,
reputation risk would be 100x higher. They are printing money with those collector items :D
IMO it's legit, from some returns decades ago or something with a dispute. I remember some years ago ( 2 or so) a bigger company had found 3 pallets of new Nintendo snes.
Damn, that was nice, I got one for around 150$ :)
I think the set will incredible age well ( and legends cards will be super rare) + should boost old card prices.
IMO a cool event :D