Lewk, you're letting your pissant attitude blind you. I said right there at the top "you can overturn binding precedent." That's because it has an active component, it's still doing something. But you can't overturn the fact that a prior decision had consequences because that action has already happened and gone, there isn't anything to act against anymore. Someone has to make a positive action, that can do something where there is nothing anymore but a negative action is meaningless because there's nothing to take away or get rid of.

Hollingsworth struck down a piece of legislation. It is no longer in the California Constitution. Overturning the precedent means new legislation saying the same thing as what was struck down can be reintroduced but it doesn't magically make things like the provision was never struck down in the first place. Time has passed since then, the provision isn't there anymore.