Yeah that’s a fair point wrt non-militant roles, my assumption was that they were primarily used in the military since their purpose was to avoid the issues with mobile networks being used to track them.
But we don’t know exactly how the devices were distributed, so you’re right that there were potentially a large number of non-military Hezbollah staff.
And you can keep hand waving away the fact that lower precision because of less light is not the primary cause of racial bias in facial recognition systems - it’s the fact that the datasets used for training are racially biased.