Re: the flight deck windows.
As the pictures and video show the windows to be closed, it is unlikley that following the evacuation somebody re-entered the a/c, stowed the escape ropes back into the ceiling stowage and then shut the DV windows. Therefore, it would be a logical assumption that this was not the chosen route for the flight deck to evacuate.
From a personal point of view, unless the situation was clearly of immediate life-threatening severity (cast your mind back to the Chinese 737 fire on stand last year), not being either a monkey or an Olympic gymnast, I wouldn't choose to use the rope either as it is in my mind, far more likley to lead to me getting seriously injured than using the slides. Given that from ordering the evacuation, the flight deck have a short checklist to complete and that the cabin should be evacuated in less than 90 secs, it is also unlikely that any significant delay would occur in choosing to evacuate the flight deck via the cabin door rather than the window.
Entirely non-SOP, but a sensible option.