Well Terri is the evidence that Ten weren't above the fake eviction bullshit. There was absolutely no need to put her back in the house.
The producers clearly wanted her to win which is why they showed the voting percentages in the final (if memory serves me right Ben was in front and then when the voting lines closed, magically, Terri had overtaken him). Same thing in 2012 (clearly someone on the production team did not want Estelle to win)
That annoyed me so much.
The housemates vote Terri out immediately. BB thought, "oh shit our old person." She was then given a task to stay, which she failed. They let her stay.
Then on the eviction night, they were pleading with the audience to vote Terri. It was a blind graph. They were pleading for Terri. Kept showing graph. Then they extended the voting period. Extended the show. Kept pleading. Then they chanced the rules, showed the graph with Ben winning. Kept pleading for Terri. The after she took over. Closed it. It was so obvious and bad.