"...in September the band posted an announcement on their Facebook page announcing their plans to drop the name." and they still have not done it. They are not "formally know as..." since they have not changed their name and continue to tour under this name thus the protest.
What a load of wasted energy. Go help your community instead of chasing outrage butterflies. It's okay to be offended sometimes, you know. It's part of life.
Joy Division as a band name could not exist today.
BTW Scotty Boy, based on the pace your comments are degenerating, I suspect you're next comment will be typed out to spell monosyllabic grunts.