Samus destroyed most of them herself, and I ‘hate’ to dissapoint you but I myself had a great hand in getting rid of all the rouge machines that had killed Luminoths. It would be disrespectful to those who had fallen to not do that.
The way I see it, they killed Luminoth and even if some of them had been returned to their normal state they had our races blood on their hands and we had created them. They had to be destroyed for this reason, mainly. but also because they were a gruesome reminder of the war, we have no desire to smash anything now because we must find a way to live peacefully.
The same applies to quads. The Sanctuary Fortress is home to the robots that do not harm, but repair and help us thrive.
Perhaps in time we will have weapons of war once again but now it’s something we shudder to think about. So many casualties on our side have lead us to this peaceful path for as long as we can make it last.
I confess myself to be surprised to hear from you, Ridley, because after our race joined the Galactic Federation we have been allowed to look at certain files on those who made war on our planet and found a link to you in space pirate files, then we found out that samus had reported you as deceased.