The heart of science is running experiments, and if Google can't run experiments or pilots, it will fail to the innovators dilemma. Our democracy is similarly unable to run experiments to test out policy, which was another thing Larry talked about, as a result, we argue over the effects of policy without doing anything. States were supposed to be the laboratories of democracy, but even on the state level, hardly any experiments are conducted.
The idea that you should only launch services you plan to run forever is a plan for stagnation and death.