I mean, it kinda makes sense. Especially in this day and age an appeal is the final say, not the court ruling(feels like everything gets appealed). So, this way the place that happens is the highest court in the state. The final ruling is whether the highest non-appeals court did it right, not the original issue.
Or, put another way, if you tell me the highest court in the land has made a decision, I would expect that to be the end of it. But it’s not. From the moment the verdict is read lawyers are preparing an appeal. Therefore, whatever court takes the appeal makes the true final decision. Why not then make that the highest court in the land and better reflect the role?