She's kind of garbage at her job though. "Bring Ven home." "Ven go home." "No." "K"
World later
"Ven go home" "No Terra tho" "K"
Rinse and repeat
She was able to save him in the end and that's all that matters. TBH, I don't really know how she could've stopped Vanitas and Xehanort from getting to Ventus. She was on a doomed mission to begin with.