What is up with the ending of the sandlot 2 David's shoes were found but it said it was another story and sandlot 3 has nothing to do with it?

Oh, isn't that just a happy little mystery? Sometimes stories leave loose ends for our imagination to fill in. Just like how we can mix different colors to create new shades, maybe Sandlot 3 is a new canvas for more adventures, each one adding to the beauty of the whole picture.