The disappearance of the coordinate points did not necessarily mean that the corresponding member of the Qing Eliminating Society had died, but it did mean that he had lost contact.
The Qing Eliminating Society had very strict disciplinary requirements for members like Zekeiah who were on long-term missions outside the base, and the punishment for losing contact was very severe.
If the disconnection was intentional and malicious, once caught, the person could be executed on the spot. Even if