Lol, why so much bickering over the official title. I interchangeably call it “TFA”, “The Force Awakens”, “Episode VII”, or “the new Star Wars” all the time.
That said I’m sure Episode VII is part of the official title, but because Disney is at least trying to appear somewhat loyal to the theatrical OT, they decided to market it like such. This isn’t as bjg of a deal as calling “Star Wars” “A New Hope”.