Blizzard: "Journey to Un'Goro Card Distribution is Working Properly"
In a statement issued on the Battle.net forums by Daxxarri, Blizzard has addressed the recent community concerns regarding card distribution and has clarified that card distribution is working properly.
Quote from Blizzard
We have seen a number of posts from our community today regarding Journey to Un'Goro packs and the possibility that they might be distributing an abnormally high amount of duplicate cards. We want to assure everyone that we have looked into this concern and have found that Journey to Un'Goro card distribution is working properly, both at a per card and per rarity basis, and is consistent with previous Hearthstone releases.
Thank you for bringing this to our attention. We really do appreciate all the feedback, even when related to possible bugs or concerns around the game.