What's the controversy? The seat was empty anyway. Does it take more than one person to open the door? Good for the old lady. At least she will be the first in line to get out of the plane in an emergency.

On a similar note, I was asked by a frail looking FA in her 60's asking the passengers if they would be able open the door. Question ia: would she be able to open the door if the situation arises?

Finally, able bodied or not, how many would know how to open the door in the first place? It looks easy but in an emergency these people may freeze.