As mentioned by Jordan and Gina, LinkedIn changed the data they allow to be exported after that video was created (I never could get Marketing to make a new video).
The LinkedIn import is great for getting some basic information into you profile very quickly. The down side is that the import is one-way, and changes made in LinkedIn are not automatically updated in PureCloud (you have to import again to get the latest info from LinkedIn). So, I recommend using it once when setting up one's profile.