All is well no matter how the score turns out. For one thing she's probably learned a good lesson about reading the question more carefully. Better to learn this in 4th grade than on the SAT. How does she feel about the areas other than "the writing is focused on the topic?"
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has a logical organizational pattern (including a beginning, middle, conclusion, and transitional devices), and has ample development of the supporting ideas. The paper demonstrates a sense of completeness or wholeness. The writing demonstrates a mature command of language including precision in word choice. Subject/verb agreement and verb and noun forms are generally correct. With few exceptions, the sentences are complete, except when fragments are used purposefully. Various sentence structures are used.
Depending on who's doing the grading she may lose points but she doesn't have any control over that. Chalk it up to a lesson learned and tell her this isn't a big thing to stress over. Kids get enough pressure from schools on the state assessment and you can help her put it into the proper perspective.
http://fcat.fldoe.org/pdf/rubrcw04.pdf