Facebook ECHOCast Extension? is it possible or is facebook preventing

hey there any update on ECHOcast for facebook? i heard through the grapevine mixer is getting it next? is there an issue causing gearbox to do it with facebook? or is facebook not up there with streamers ? thanks please share as i part time stream on facebook (strickly borderlands 3) and my fans would LOVE this! as expliaing it to them gets them even more eager!