Also, to add to this...
One idea I've had is that it would be interesting if Google created a webmaster partner program to help build the web they want to see. Webmasters could join and embed Google's code into their website, and Google could get access to engagement stats and anything else to help them determine positive reactions by users (instead of pretending they are not pulling it from Chrome - see DOJ trial).
At YouTube, Google does a great job of helping creators, telling them specifically what they want, and promoting high-quality content that people love.
I'd love to see Google get the data they need so they can do that.