Puella Magi Madoka Magica: the Story of Nothingness

Sometimes, success is not guaranteed as long as you have hope and work hard. The kind and naive protagonists in anime are knocked down again and again for love and justice, and then stand up again and again. This scene is really touching. However this is not true. Why does Puella Magi Madoka Magica stand out from many anime? Isn't it just to break the nihilistic "magical girl" fantasy and pull people into the cold and desperate reality? Although I was very reluctant, I had to admit it. After torturing us thousands of times, Lao Xu gave us an ending that was not despairing, but is this really the reality? In such a mature world, isn't this ending a bit weird?