I disagree. Google's phones would be ringing off the hook if they discontinued service for a day and that wouldn't benefit anyone. We shouldn't punish the entire Internet for the day, only do enough to raise awareness. This is the most obstructed I've ever seen their logo and the first time I've seen them link to something other than just a search term on the "doodle." I believe they have done their part.
This is more than just a doodle. And it's a day long event at a ton of websites. People will notice the doodle. They'll notice that wikipedia is down. They'll notice Wordpress' page. They'll notice the front page of Huffington Post. In the context of everything that's happening today, people will perk up.