Remember that Google's goal is not to improve security but to win over more customers, in other words make you choose their service over another company's service, even over a much more secure one. This kind of campaign to improve is what might tip over many potential costumers and choose Google after all, contrary to all rational thinking. It's cheap to do for Google given their internal resources, it's simply necessary in order to keep a foot in the market and so it's nothing unexpected or generous, and therefore it's definitely nothing to get excited about as a potential customer.
The question is: Is it good enough to keep the spooks from not looking? Answer: Probably not. So move along.