But ... wait. Supers have been illegal for years. Pretty much everyone already distrusts them, which is the whole reason the Deavors were supposedly trying to improve their reputation in the first place. And now her problem is that people are too reliant on superheroes? What the hell is she talking about? She already won! Society already agreed with her! She is literally creating the problem she claims to be dedicated to solving.
Even more baffling, Evelyn chooses a scary, faceless entity to communicate her message, thereby creating a way for supers to unite with the community against her. The whole thing makes it look like she got confused and forgot her plan half way through. Or like her actions are based entirely around making sure the standard blockbuster plot twist shows up on the right page of the screenplay.