Why use provider as a closure if you can just pass an argument?

I'm wondering why ios devs use closure to pass single value if we can just pass the value itself? I've some doubts but I need some clear reasoning on why do it? I've seen it used commonly as providers. Here is an example

func navigate(_ property: Int, navProvider: (() -> UINavigationController)) {
  let vc = MyVC()
  vc.property = property

  let navController = navProvider()
  navController.push(vc)
}

what will happen if we changed this code to the below?

func navigate(_ property: Int, navController: UINavigationController) {
  let vc = MyVC()
  vc.property = property

  navController.push(vc)
}

Thanks!