Ideally they both should have been sent home last night..
Korinna has a horrible attitude, her designs haven't been good, she's continuously had to change her look because she couldn't execute it properly in the time given, and has sent unfinished garments down the runway on more than one occasion. not to mention on every challenge she had to complain that it wasn't her aesthetic..
Char has terrible (for this competition) sewing skills and has been in the bottom far too often. She was saved once before and hasn't really shown she deserves to still be there so it was time for her to go back home (especially after two challenges in a row in the bottom 2)
as for Korinna being pissed about the Tim Gunn save on Char, I can't really blame her.. I think the purpose of the TG Save is to save a designer who maybe had a bad week but was otherwise really good and the judges couldn't make up an excuse to keep them.
I'm sorry, but Char has never been that person so he really did waste it on her. It more should have been used on a Sean or Kini if one of them got into trouble and was sent home. I don't think at this point either of them would be sent home because it's pretty obvious they are the top two of this competition.
Emily and Char should really be the next two to go (or even Amanda instead of Emily)