McAfee is not a bitcoin Guru or a crypto Guru. He's just a famous guy with an opinion. The only reason following his opinions has any value is because so many people think that he knows what he's talking about. There are so many better informed people than McAfee who get little or no recognition and attention.
The author of this list
https://bitcointalk.org/index.php?topic=2880178.new#new thinks differently
He put McAffee on the 8th place. And he's got a lot merits for this list.... so I guess means people like it.