I have taken the test multiple times and I always get INFP, but when Arya took the short version you linked (the one I took was 200 something questions), she received ENFP.
It would make sense that her primary mode of living is external, because that is where all of the stimulation from my senses that she relies on is.
Edit: Also, reading the description of an ENFP
here, it does sound eerily like how she acts and how she seems to think.
Also, she is the one who filled it out, I didn't do it from what I think she is like.