I am not sure that I see any relevance in a survey of what faculty feel about this. There is already enough research to show that there is no significant difference in the learning between online and face-to-face students (http://www.nosignificantdifference.org/). I have taught online and off and also as an instructional designer. In my experience, they take the same amount of time. What I find is that instructors who say that it takes more time have not been properly trained in how to teach online. It is not the same as teaching face-to-face and when instructors try to replicate the face-to-face experience online they run into trouble.