I don't think they were really confident. Sometimes you need to repeat something to yourself because you lacked of confidence. And btw over confident or not, they never deserved to go home early like that. They wanted to punish them but they weren't the weakest of the bunch.
Sharaun addressed it in her Oliver Twixt interview that she was manifesting a win. Her mother told her to always think of it and declare it and she did unfortunately it didn't work LOL
"Can you do not a southern accent?" That's a big RED FLAG!!! She is speaking perfectly fine and there is no need to change her accent in my opinion. That's just how she talks. What do you guys think?