It’s the same reason the American alligator or the shovel nose sturgeon is listed. Because it’s very similar in appearance to actually endangered species. The average person has no clue the difference between a dead and live coral let alone what species of coral is what. So it’s all illegal. But totally agree. Elk horn and stag horn could be quickly saved from the brink of extinction if hobbyists got a hold of it. Federal government is incompetent when it comes to rearing endangered species. Give it to a hobbyist though and the will have that figured out over night. I wish at the very least NOAA would issue permits to private Aquarists to keep these corlas as refuge populations.