Of course nothing is perfect. I'm happy if it smart enough most of the time.
But at very least its not hard to imagine situation where its safe to drive on a wrong way in a parking lot. For example an empty parking lot.
Even when another car show up and block it, meh not a big deal, its unlikely that the car will hit the other car.
Even if I am a human driving the car, I can pretty easily look down the lane and see it is clear right now, but if I do decide to go down it, I'm pretty much just hoping that another driver doesn't show up and block me.