Well they aren't real.
From what I know, there are no actual official sprites or anything in Gen 6, so all the current sprites are made by people over the internet. Notice how right now if you play Gen 6 on Showdown, none of the Gen 6 Pokemon have moving sprites, unlike all the previous pokemon?
There were also sprite projects upon the release of Gen 6, to gather different sprites made by different people over the internet. Like this smogon one.
