The site itself is a hub of marketing techniques. It is trying to become the go-to place for, say, a venue owner looking to bring in the right bands. It offers ways to distribute music for less, easy set up of press kits, detailed description of their fans' demographics, the ability to automatically find any press source that has mentioned your band, and a ton of interesting, easy, and helpful tools.
Does this mean that artists don't necessarily need any help from a manager or label or other professional to truly market themselves and build a following? I think this shows that independent artists can do a lot themselves these days. That might mean that music industry professionals might have to adapt and offer some other advantage to the artist who can now do everything by themselves.