Another things about flatter hierarchies is that you have more impact. Your good or bad decisions have more affect and more affect on how the company does. Your deeper skills will make it more likely your organization prospers and your jobs is rewarding (instead of lost as the company fades away).

Deep skills are also enhanced by a strong network when trying to be hired. People are wise to work on that far before they need to be hired. A blog is one great method to build a network.