I’m not sure about giving the audience more information, or that it will make it better. Sometimes receiving a flood of information makes it too overwhelming for people, especially when you try to operate two or more media platforms simultaneously. On the other hand, knowledge is power, and the more information the better in most cases. It may also provide for more opportunities, or more headway for research. Seeing is people respond better to less, but solid information, versus more, but not as factual.
About the study, I found it obvious that most people would use media platforms less when people were in the room than when they weren’t. Though, I will have to say that on more than one occasion, I have been in a room with several people, with the tv on, and yet, several times throughout the duration, I would look around and most would be on their phones, even with someone next to them and the tv playing. From this experience, I think too much focus goes into multimedia. People should talk, or at least be participating in the same communal act of watching the tv. It might have something to do with the fact of people retaining less information.