As long as they work for a publication that has a real address of their office it's enough. When they operate a blog or website on their own they also have to

As long as they work for a publication that has a real address of their office it's enough. When they operate a blog or website on their own they also have to publish a so called imprint including an address (which might be an office address though). Journalists and everybody else working from home have no choice for their sites and blogs.