I've noticed lots of talk about this, most of it treating this as if it's something new.
Yes Candy, the contents filtering in Google searches was actually started in Germany, where the laws about what you can show about Nazism is extremely strict, so Google had to implement filtering there.
This is the initial reason why the google.de site was set up and the whole mechanism of redirecting you from google.com to a site local to your country was implemented.

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‘To those who regard “crime fiction” as some sacred icon which must follow a rigid formula, I will always be the man who writes 18-syllable haiku.’Trying to make sense of computers, The Error Log.