Everything I’ve found about the drones in that conflict indicates they use automated navigation for pursuit once a target is locked, but human pilots before then.

you described two different steps: human pilots get to desired area and target locked. For the human part, if the drone isn't using fiber optic and is getting jammed (many types of jamming), the human pilot might not be able to communicate with the drone. If that's the case, how will the drone get to the desired area? that's where the two things i posted come into play.