I agree with what you say overall. Everyone did manage without her, so it can feel like make work for her. But, I think it probably was also a bit too easy that they did manage without her in that department. I never saw other heroes in a role of employee to her. The same situation could be flipped and it could look like she's working for them. I always saw it as a cooperation.
Babs being paralyzed and becoming Oracle, it's always a double edged sword, because it could be seen as problematic the way it happened, but she was a fantastic character who was also disabled and her development after that was brilliant as Oracle. I can also appreciate that her returning to being Batgirl also restored an iconic heroine.
If we get a new Oracle - and we need a new new one as no once cares for the new one - it could help to have it be someone who is already a beloved important character, which is why I thought of Tim for that role.
I do hate the new costume. The colors are drab, the unnecessary lines are just ugly. A little streamlining and adding some color would go a long way.