There is a little difference between a dev - someone who tries to provide more fun for the players - unintentionally causing an exploit, and a player who notices an exploit and intentionally abuses it, and then points fingers at other people and make demands.
We happily admit any our mistakes and try to rectify them. This very thread is an attempt at that. It is up to the people who abused the exploit to rectify their mistake now. That's all that needs to be said. If this doesn't align with your moral compass, feel free to keep complaining, but it won't change the facts and the outcome. There is no room for bargaining with cheaters.
