That may have been the case. Though, it could have also been that considering it was resolved much faster than anyone expected it to be that Batgirl brushed it off like just a mugging. Besides, it was nothing more than a few bruises that she hoped would go away before Saturday.
The way he was describing the two definitely didn't seem like they were talking about the same people. Then again, she couldn't really expect him to know. Right? They were from a different place, even if it was Gotham. They did say that there was another Batgirl. And really how long did she expect to be filling this role.