Considering you need to hold the summon button down for it to proceed, yes you are?
So you are in control of the car. Not the trajectory, but you control its velocity. And you are responsible according to tesla.
So you are not in full control of the car then. If a car decides to go in reverse when instead it should go forward and proceeds to hit a pedestrian that was tying his shoelaces behind it. Can you explain how that was an action of a person pressing a button that has no control over the trajectory of a vehicle and why we should consider them somehow responsible for that action (of backing up) instead of the car manufacturer?
> And you are responsible according to tesla.
That is irrelevant for this discussion.
You became liable as soon as you weren't paying enough a attention that someone could apparently sneak up next the car to tie their shoelaces.
What is the point of the feature if I have to come to the car and inspect that there are no blockages around it? Should I then walk to the place from which I intended to use the feature and use it or should I maybe just enter the car seeing that I am expected to circle the car before using the feature?
The rest of society is under no obligation to scale its expectations of your liability in proportion to you getting a perceived return on investment out of your expensive toy.
I.e. maybe you should always walk up to and around the car before using the feature in a public parking lot, and only make use of it to e.g. have the car back out of your own garage, provided that you have a clear view of your driveway being unobstructed.