The other reasonable course of action would be to go to court, where a jury of average citizens could determine whether or not Apple or Docker is in the wrong and decide damages.
Docker wasn't pushed into taking the image down, they *decided* that they'd rather take the image down than have a jury decide who is in the wrong.
that's very important to point out yes! it's not like apple software products are covered by copyright law after all. it's the big bad lawyers that's ruling the day here.