I don't see how that would be universally possible. Take the video, for example: at the time of the video, the Tesla seems fine to continue the wrong direction down the lane. Maybe it's somehow "determined that it is safe" (even though I doubt it does that). But if one of those parked cars in front of the Tesla had pulled out and tried to leave, they would then be face-to-face and both would be stuck.
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.
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.
True, but what if smart summon is smart enough to determine that it safe to go wrong way ?