All RA cattle came from Black Angus. Back in the 70s, if a reg BA breeder had a red calf born, they didn't understand how their reg black cattle had a red calf, so they would take it behind the barn and kill it. They were afraid people would think there was something wrong with their herd. Finally, they realized it was just a red gene. Someone got smart and instead of destroying the reds, they started a PB Red assn.
BA still produce red calves, the RA assn will register them.
Obviously, the USDA has acknowledged that RA and BA are all Angus. Whoop-de-do. Everyone knowledgeable about beef breeds know that. All that report says is that IF a program wants to accept RED, the USDA is OK with that.
RA in this day and age are a better beef animal right now than the BA. But, if the article is right that the RA is trying to improve carcass quality, they will lose the nice muscled cattle they have right now....chasing marbling, which is antagonistic to the muscling gene.