Where do you get 2? DI said 5 were safe and 6 were not. And 2 of the 6 were going home which means they predicted more than 50% were safe at the end. If you have a partial estimate (phone calls) and internet voting and text messaging are unknowns you still have a better measure than and arbitrary opinion. It's not perfect but it's better that nothing.
I predict that next week, Scotty, Pia, James, Jacob and Lauren will be safe and that from the rest, 2 2ill go home. Let’s see how accurate I will be!