Isn't that the reverse?
The way it looks to me, it's not that Almunia finds Google's proposition insufficient and is giving to Google yet another chance. It's rather that every time he declares himself satisfied, and every time he faces a barrage of complaints through every channel asking him to demand more from Google, or if possible, drop the whole settlement idea.
What is happening now is not that Google gets another chance to revise its offer, it's that the competitors get another chance to complain. Almunia has not even asked Google to change anything at this moment.
And the fun part is that even though this has been four years, it is the fast process. If Almunia eventually decides to go with the flow and start an antitrust investigation of Google, we'll still be waiting for the end in ten years.