When the legal reality does not align with actual reality, there is injustice of the worst kind.

The button says "buy" not "rent" or "license".

That should be enough to defeat all the fine print, click wrap hidden clause clever maneuvering bs. The merchant is lying to the buyer. The merchant should bear liability for deceiving the buyer. The merchant (Sony) knew what they were selling. They lied to make it seem like you'd have that video in your library forever. Sony needs to give a refund with interest. Simple as that.