Except that Babs never showed an interest in adopting anyone, unlike Bruce. While Cass occasionally compared her to a mother, I was always under the impression that Babs saw herself as a big sister figure and not a parent.
As for Bruce 'abusing and manipulating' Cass, he was always convinced he was making the right choices for her, whether that be letting her be Batgirl 24/7 or firing her. While Babs, with the same intentions, failed to fuflfill the goals she'd always had in mind re: Cass' well-being when she didn't teach her how to read.