It is hard to put a point on this one. Yes, we all would love hot off the press updates. However...

Day by day updates will be small, eg: yeah....we changed,......a code.....if you can read code, isnt this cool.

Also, if SE update publicly too much, they could give info to rival companies, which may jepodise the game further. also, being on a tight rope of PR, they do not wish to make promises they may not be able to keep