I'm sorry, but this is a bunch of SEO guys whining about the fact that their dubiously useful sites they spent lots of time trying to move up Google's ranking are no longer at the top of the page.
When most people search for "san francisco dentists," why wouldn't they want locations and phone numbers of some of these dentists presented right upfront? This is no different than what Bing, Yahoo and even Duck Duck Go are doing, and there's nothing wrong with making the result page more useful for people without them having to click away.
Sure, Google has been getting a little too spammy with the amount of ads in the yellow box, but complaining when they surface Youtube videos or maps is ridiculous. Nine times out of 10, that's exactly what the user is looking for.