...and that's the entire problem with the prologue. Because it actually doesn't deliver on that at all. This was Batgirl/Barbara Gordon in name only. Call it "Bruce Timm's vision" but for newcomers, to put it boldy: In this film it seems more like "Batgirl" was a tool that was invented by Commissioner Gordon's daughter to get close to her schoolgirl crush, the Batman. Once she finally got her dream stud to copulate with her, the reason for "Batgirl" seized to exist.
I know that's probably not the writer's intent, but when you take this prologue as a "Batgirl for dummies", that's pretty much what it boils down to.
This does not maker Barbara in any way a stronger or better understood character in the media. This was not Barbara Gordon. This was not Batgirl. This was a Bruce Timm fantasy character. If they wanted to make any serious kind of attempt to introduce a fresh audience to the character, the first thing they should have done is have a meeting with Scott Beatty, Chuck Dixon, and Gail Simone. In-fact, Gail Simone should really have been a ful blown consultant on this entire prologue project, since she's had the most experience writing Barbara Gordon.