Quite true, but this is one of those easy situations that can be made clear with little effort. Either she was assisted by an interpreter, or she wasn't.
Malkmus offered this (no link though) as the original context for the comments:
"On November 6, five days after Merediths murder, Knox was interrogated by police for nine hours until she signed a statement at 5.54am. Her family says that despite her good marks at university, Knox was not fluent in Italian, but no professional interpreter was present, only a police officer who could speak English and who was not always there. She was given no food and no water for all the nine hours. Ive never been so scared in my life, Knox told Deanna later. Curt says: Amanda was abused physically and verbally. She told us she was hit in the back of the head by a police officer with an open hand, at least twice. The police told her, If you ask for a lawyer, things will get worse for you and If you dont give us some explanation for what happened, youre going to go to jail for a very long time. Edda adds tearfully: She was told she wouldnt ever see her family again, and her family is everything to her. Knox gave them a description of the officer who allegedly struck her, but it cannot be published for legal reasons. The Perugia police have denied striking her and have said she understood what she was signing."
Knox was not fluent in Italian, so she would not have been able to provide a statement without the assistance of an interpreter. Apparently the interpreter did a fine job of interpreting, as Knox reiterated her earlier declarations in her voluntary "gift" statement.
It's unbelievable that the family claims that Amanda was so abused, starved, etc. in the period of one hour, during which she was able to communicate with police, that she was forced to accuse Patrick. Did they not realize that eventually it would come out that Knox confessed in an hour, and that this starvation was a mere 3 hours after Knox ate a pizza?