The other article from 2017 doesn't give me the fake MLK result, so does that mean Google DID adjust their search results?
Should Google be manually currating results? Sometimes, but I think they've proven they don't draw the line exactly straight.
What would convince you that you were wrong?
Look at the examples given. One is Google doing nothing to "fix a problem" (http://www.joebiden.info) and the other demanding Google fix an issue which they seem to have done - as being anti-left. Google being agnostic and not protecting Joe Biden is not them being Anti-Left.
I will not be bullied into thinking that Google doing nothing is them being anti-left. I disagree with many of the conservatives Google that have been deplatformed, but I recognize how quickly that pendulum could swing.