Hope you speak Korean! Straight from the horse's mouth. [0] The companies themselves were well aware they were working illegally. People were even doing visa runs to chain them, it doesn't get much more blatant then that.
It's pretty obvious and not a real point of contention. Being honest about this does not support the raid, and acting as if it does helps nobody and only hurts.
[0] https://www.teamblind.com/kr/post/%ED%98%84%EC%B0%A8-%EC%97%...