And regarding myth 3 and 6: you can't really hold these views simultaneously. If you can opt out, then that's a built in form of discrimination. Whether that's actually relevant probably depends on your domain.
What I would gather from taking the article at face value is: According to Myths #2 and #3, big data is classist, racist and sexist. According #5 and #6, Big Data is actually Big Brother. #1 points out that Big Data isn't The Next Big Thing, because it's actually old news.
There's plenty of genuine problems with Big Data, but the article seems to be more concerned with playing on people's fears regarding it than actually providing any concrete arguments about its failings.
Quentin Hardy has spent his life in the publishing industry. He's likely a strong verbal thinker.
That's exactly the sort of person who hates statistical reasoning.
Most serious practitioners realize this is tough business.