These pirates lived by looting and plundering. If they were now to be provided with so much high-quality equipment, it would be like disregarding the safety of one's own people. In the position of a national leader, I would likely have never agreed to such terms of trade. However, the other party knew that Li Xiao held a high official position in the country and used this as a bargaining chip to negotiate, coercing China into submission.
Clearly, their strategy was very effective.
Moreover, these pirates had no humanity to speak of—they periodically recorded videos of them torturing Li Xiao, tying her to a chair, taking turns beating her, and using electric shocks to stimulate her, causing her to emit agonizing screams. They sent these videos via email to the Lis, and as a result, old Master Li fell ill and passed away last week. The entire Li family was in such pain from this matter, and Li Xiao's father, Li Zhengguo, wished he could go to Morocco himself to rescue his daughter.