Tbf if anything, I would imagine the WT legends are genuine, because they keep the Rng ones. And release the transferred ones. I transferred both summer event zekrom and reshiram and each I caught in game. None are perfect. It's a nostalgia ting. I have pokecheck transferred a couple of legit events I missed. Which are no different then any others genuine caught ones. :)
FC 1349 6088 2442 I gave birth to Arceus. It really really Hurt.