Blake liked her enough to give her a second chance. Perhaps the producers were involved in pushing for that to happen, but he must have seen something there.
This was probably her weakest performance, and at this point it is just part of the game that you can't afford any kind of slip ups. I definitely heard the breaks they were talking about, and if my untrained ear can pick up on it then there is clearly something wrong.
The only one eliminated this week that I think I'll miss going forward is Ashley DuBois. Tessanne is surely talented, but she has this kind of hard edge to her that is somewhat off-putting to me. I enjoyed Ashley's performance a lot more personally, but alas.