Well they had to eliminate someone from the losing group. It's unfortunate that she had to be the one, I'm sure there are others that they could/would have been eliminated other than her had she been in a different group that lost. It's how the competition goes. Regardless, at the end there is only one winner anyways, and unless, she as well as the others who do not really speak or have not yet sang a Korean song are at a disadvantage regardless of how well they sing.