Not sure what your link proves. In reality, no one knows if this statement to be true because addresses and wallets can be shared. There was a Bloomberg article

Not sure what your link proves. In reality, no one knows if this statement to be true because addresses and wallets can be shared. There was a Bloomberg article with lots of interviews on this topic with people in crypto business and no one seem to deny this: https://news.ycombinator.com/item?id=15877838 https://news.ycombinator.com/item?id=15877838