tvOS: How to avoid fast-forwarding in AVPlayerViewController

Due to legal restrictions I need to prevent my app's users from skipping and fast-forwarding the content that is played by AVPlayerViewController.

I use playerViewController(:willResumePlaybackAfterUserNavigatedFrom:to:) and playerViewController(:timeToSeekAfterUserNavigatedFrom:to:) delegate methods to control the skipping behaviour. However, those delegate methods are only triggered for skip +/- 10, but not for fast-forwarding/rewinding. 

Is there a way to prevent fast-forwarding in addition to skipping in AVPlayerViewController?

Here is an example of the code I use:

class ViewController: UIViewController {  

  override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    setUpPlayerViewController()
  }  

  private func setUpPlayerViewController() {
    let playerViewController = AVPlayerViewController()
    playerViewController.delegate = self

    guard let url = URL(string: "https://devstreaming-cdn.apple.com/videos/streaming/examples/img_bipbop_adv_example_ts/master.m3u8") else {
      debugPrint("URL is not found")
      return
    }
    let playerItem = AVPlayerItem(url: url)
    let player = AVPlayer(playerItem: playerItem)
    playerViewController.player = player    

    present(playerViewController, animated: true) {
      playerViewController.player?.play()
    }
  }
}

extension ViewController: AVPlayerViewControllerDelegate {  

  public func playerViewController(_ playerViewController: AVPlayerViewController, willResumePlaybackAfterUserNavigatedFrom oldTime: CMTime, to targetTime: CMTime) {

    // Triggered on skip +/- 10, but not on fast-forwarding/rewinding
    print("playerViewController(_:willResumePlaybackAfterUserNavigatedFrom:to:)")
  }  

  public func playerViewController(_ playerViewController: AVPlayerViewController, timeToSeekAfterUserNavigatedFrom oldTime: CMTime, to targetTime: CMTime) -> CMTime {    

    // Triggered on skip +/- 10, but not on fast-forwarding/rewinding
    print("playerViewController(_:timeToSeekAfterUserNavigatedFrom:to:)")
    return targetTime
  }
}