They have a very different vision of the web where users live in a corporate playground and complex browser engines which only a few large corps can manage.
At this point what is making the web a better platform? The web has feature overload, even with features like Server Push which are seldom used. FWIW I think there are some exciting possibilities and new features for the web, especially around the P2P space, but I don't think it's in Google's interests to push for that at all.