Comparing all the onboard videos, the cabin strip lights appear to be in standard dimmed/off mode after landing.
So it was dim but not "pitch black" as suggested earlier. The giveaway is that the video screens and exit signs are under exposed.
One of the reasons cabin lights are dimmed is to allow a clearer view outside to assess hazards, by eliminating reflections from the cabin.
The other reason is to allow eyes to adapt to dim light so crew or passengers can better see outside to assess hazards.
But the images of SIA passengers being moved away from the effected part of the cabin in such dim light, draws attention to the compromises of the current arrangements.
Namely, one has to untangle oneself from headphones seatbelts and get to the door without tripping.
One video has a passenger using his cellphone led light, perhaps as much to find his way as to aid filming. You will note he says sorry as he goes back to his seat and so blocks the aisle. He blocks the aisle again 30 seconds later in business class.
http://youtu.be/dAUwItTw4AI
It takes 5-10 minutes for a 100x increase in our Night vision, but this can be lost in a few seconds by just a brief flash of light.
So allowing passengers to view the bright screens from smartphones during a night landing makes a mockery of the existing procedures!
Also passengers will use the cellphone inbuilt torch during a lights out emergency, dazzling each other and resetting eyes to day vision.
It is only the area adjacent doors that need to be dimmed to prevent reflections.
Time for a rethink?
Mickjoebill