TheAlrightyGina
Crowing
It's not outside the realm of possibility that they took some Grünlegers that had decent barring and crossed them into their BRs to improve something in their stock and simply selected to avoid the green/blue quality. As far as I know hatcheries work with a breed for several years before they're made available to the public, so considering that these EEs are newly listed, it's quite possible they brought them in years ago and used them both to enhance one of their BR lines and to develop an EE that would stand out from all the other hatchery EEs.