Only then can CV do the last part ("terminal engagement"). But that also means it won't go inside a hangar and find the target there.
I don't think we're anywhere near having drones that happily fly above a war zone, detect an interesting hangar, find a way to get inside and select a target inside.
Currently they mostly fly FPV drones manually. The next basic step is to have "terminal engagement", where at some point they can select a target and the drone will fly autonomously to it using CV. But in order to do that, the drone will need processing power, and therefore it won't cost 500$ anymore.
Would you rather go for a drone that costs 5k and can use CV for terminal engagement, or 10 drones that cost 500 and simply stay on their latest vector if no command arrives?