While designing SAP Career OnDemand applications, I use prototypes similar to the one above to test the waters of a concept or a story with potential users. Since I can built these things myself, the turn around time to built, test iterate is literally days rather than weeks. This approach helps me talk to customers, partners, development colleagues and analysts with real data and confidence.
If you are wondering why enterprise applications cannot have user experiences like the one you see above, you have a point. They can and they will start looking like this in the near future. It is an idea whose time has come.