I think Mr. Berlinquette make a rather accurate statement towards the end:
With the ISIS campaign, Google decided what a radical view was, who seemed to hold those views and who should be able to view them. It’s hard to be cynical about an initiative that deters extremism. But entering the domain of social engineering is a slippery slope. The standard of what needs to be deradicalized is adjustable.
Social manipulation in one form or another isn't very new. What is new is the ease of exposure. Most people are going to see search results one way or another. The number of people using as blockers will likely remain a minority.
It's not like you've got to rely on stories from the local village elders for everything. Searching the world wide web connects you to many sources of knowledge; beware the wise asses you listen to. Because we all have an agenda whether or not we realize it ourselves.
Oddly I feel a bit of temptation to watch Blade Runner....