The reason is quite simple, because Fan Chong's novel uses the all-out war between robots and humans as its background.
It's written very well.
The terrifying aspect of Chu Kuang lies in:
Didn't Fan Chong say there will be a future war between robots and humans?
I'll use nine stories to continuously prove to you with the logically consistent Three Laws that:
Robots can never betray humans!
Do you now understand where Fan Chong lost?
He lost in the understanding of the rules, he lost in the cognition of robots. After reading Chu Kuang's novel, you'll understand how powerful the constraints of the Three Laws are on robots. It's like humans will die if they don't eat, how can Fan Chong break such fundamentally correct and guiding laws?"
...
Chen Le is not alone.