Yeah, RVR isn't great! The 'cabin crew at stations' command from the flight deck is a cue which would pre-empt an emergency evacuation while they run the checklist.
The post evacuation video is interesting as well. The bloke at 3.15 walking around the aircraft while smoking is pretty unbelievable.
At 5.35 it's a bit surreal seeing the flight deck and cabin crew just standing around as if nothing as happened.
https://www.youtube.com/watch?v=sr7Y65quulU