Those are good examples of civilian uses, but they know who is really buying it. The product description for the first one I clicked:
Communication without interference. FPV through fiber eliminates the influence of radio interference, jamming and EW systems. The transmission of the fiber signal guarantees 100% stability - no “subsections” of communication! The transmission of the drone control on the optical cable works where the radio signal is powerless: in tunnels, bunkers, densely built urban areas and areas of active suppression.
Those are good examples of civilian uses, but they know who is really buying it. The product description for the first one I clicked: