I believe you are misunderstanding my point. They aren't separate Search fields, they are the same Search accessed in two different ways. They can't have different functionality because they aren't unique objects.
...as far as we can observe.
I'm not trying to say you're absolutely wrong and I'm absolutely right, but proactive's search could maybe be containing a feature that is currently impossible to see unless iOS 9 apps are allowed, is what I'm saying. Maybe they are identical, but the only way we can prove either of us wrong is just waiting until iOS 9's official release (unless we manage to edit the source code)