I think this is quite an over reaction. Ok, they shot the "good night finalists" scene. That's hardly affecting any storylines. It's just a bit that maybe they wanted everyone to be in bed for, as the iconic scene which has ended so many series recently.
If they just tried to do that naturally, people will be coming to bed at different times.
Just because they set this scene up, doesn't mean the entire thing is scripted! I've known ex BB housemates, they haven't ever scripted anything, asked them to say anything, or asked them to perform a certain way
Calm down folks....