[WP8.1] Exceptions when calling Application.Quit()

When calling Application.Quit() on WP8.1 the following messages is found in Visual Studio output:
- Exception occured in 'AppCallbacks:erformUpdateAndRender' block.
- Exception occured in 'AppCallbacks::_AppThread' block.

The following script in an empty project will reproduce these exceptions:

Code (csharp):

1. using UnityEngine;
2.  
3. public class BackButton : MonoBehaviour
4. {
5.   void Update()
6.   {
7.      if (Input.GetKeyDown(KeyCode.Escape))
8.        Application.Quit();
9.   }
10. }

I have reported a bug, but does anybody know if these exceptions have any *real* influence on a Unity game and should be fixed (I cannot find any issues while testing), or is it ok to ship a game with these exception messages?