Unfortunately data science is not well defined (in part because it is a young field), but it draws extensively from computer science and is targeted toward data sets that are different from those that have typically been used in 'traditional' statistics - huge, dirty data sets.

This debate has a similar flavor to Physicists saying that Chemistry is not a science because it's all just physics, and Chemists saying that Biology is not a science because it's all just chemistry. They are extensions, just like Data science, and pretending that an expert statistician will be and expert data scientist is just not tenable.

There is room for something more.