Hey I just wanted to bump this. According to a contact one pre-law advisor has in Georgetown's admissions office, historically 75% of applicants who were offered an individual interview were admitted. FYI.
Many schools view the statement as a replacement for the interview. Its an important for schools to get to know you. Although admissions is a numbers game, you dont want to leave any stones unturned and would want to submit your best writing.
Maybe a future webinar interview/conference if you have time? Thanks for the additional details. It's very helpful when one's sort of in the middle of the ocean on the voyage of the study process.