Apparently that is sancioned and OK in GW2, LoTRO, etc and not for this game when it goes freemium. The hypocrisy of double standards in the forum by some (not all, some) is still amazing.
Nobody forces anyone to purchase keys. Heck in LoTRO, I sold the boxes as I am simply not into gambling in an MMO. It's not why I am playing an MMO.
Besides, it's a non-issue as there is zero evidence that anything in a lock box cannot also be obtained in game via drops, GTN, etc.
Will this game have keys as random drops like I got in GW2? No? Then this game will get the same treatment as STO gets. Get over it.