I wish people would stop claiming that Tahan deserves it because "she went it alone".
Tahan was a major part of the original "cool group" or "The models and meatheads" along with Matt, Caleb, Ed, Tully, Heidi and Jasmin. 
She had beef with the Sisters and Mikkayla, but it didn't matter because she had her cool group, so she didn't need those other girls as friends.
However, as the series went on, each of the cool group kept getting evicted, with Ed and Tahan being the only long term survivors. Whereas the misfits (Tim, Drew, Ben, Mikkayle, Jade, sisters) were still there, leaving the 2 cool group members isolated. Ed used his relationship with Jade to get closer to some of the misfits, but Tahan didn't have that luxury, so she decided to to play the underdog role, like Estelle last year.
BUT, Tahan's isolation didn't last long. once the intruders went in, the dynamic changed, and Tahan was part of the new "cool group" along with Tim, Drew and Boog.
My point is that Tahan wasn't actually alone as much as people think she was. She was part of a cool group for the 1st half of the series, and a new cool group towards the end. She was only isolated for a period in the middle. That is nothing compared to someone like Estelle from last year.