I looked at the description and, indeed, only Studio has export capabilities, which makes the other versions kind of useless. As they state:
Numeric export of the tracked expression data (exporting the motion capture data to use in other applications) will be a feature reserved for the Studio version. FaceRig Classic and Pro only output already rendered video and audio.
So yeah, what good is that? The way they approach it now, it's just a gimmick. How disappointing. It's also bad for crowd-funded initiatives. Can you trust them?