Except that this is the climax of an entire storyarc about all of Cass' problems, during which Cass has gotten more and more stressed and unhappy, and then immediately after her resolution with Bats, without any kind of resolution for anything else, we see her flying away all cheerful as the day she was born and all of those problems are filed away as "solved," with Bruce explaining that this is the only therapy she could understand. There is no other method, no help for her Black Wind angst or her fears of inadequacy or her lack of communication with Babs, because all of that would be therapy, and the only kind of therapy Cass understands is beating up Bruce. And then on we go to the next storyline and none of Cass' issues are brought up again. They were all somehow magically laid to rest in that single moment of beating up her father figure, or at least we're all meant to believe as much, because certainly the characters seem to.
Which is absurd, and insulting, and a massive disservice to all characters involved.