Indeed. How is it any better than a long press?
Maybe because it can be used as something separate than a long press. I think you are completely missing the point with force touch. It's a new way to interact with your touch screen on top of the ways we can now giving more flexibility and more options available in a more efficient way. This tech is awesome and it is the thing I am most excited about for the 6S. I guarantee that you will find it to be a feature you will not want to live without once you have gotten used to it.