You don't get it. They are nerfing Gjallar strictly because too many people rely on it and not because it's too powerful. Adding a new launcher thats better than Gjallar would just be trading one evil for another. However if you add one thats just as good as Gjallar and make Dragon's Breaths track and have the solar flare stick then you have two equal options. Then you have the player base using a multitude of weapons rather than just one.