Because the way this story is telling it, I'm getting the impression that the court is simply prioritizing its own convenience over the needs of the people getting summonsed at the shopping mall, and then compelled to appear. Which seems like the dumbest possible way to implement a jury system, because it completely ignores the legitimate needs of the citizenry to attend to their own lives.
I don't particularly want to conclude that this particular court is poorly run, to the point of incompetence... So I'm really hoping there's more to this story.