Exactly. It doesn't matter how smart or talented you are if you have no soft skills. You can't treat employees as black boxes where business needs go in and business value comes out. Soft skills are the vehicle through which someone interfaces with the company, which is ultimately "just a bunch of people".

You can isolate folks without soft skills to some extent to avoid them butting heads with other people, but at some point they still need to be able to take direction and work with some people.