When we talk about open data, it means that members of the public can, for any number of reasons, innovate in a way that the State cannot. There are not many things that the State should not do, but there are many reasons why ordinary citizens can innovate in a variety of ways.
I am very happy to hear these comments about my site, but there are all sorts of things that I'm able to do that others, such as Parliament, can't. For instance, I pair things that have been said in the House with news coverage and Twitter feeds, and so on, which, for various structural reasons, Parliament can't do. I can react much more quickly. I can experiment. Failure is very cheap for me, which isn't always the case in the civil service.