I think they probably have the time, but have, through conditioning, lost the ability to concentrate on a single theme that long unless it’s a Hollywood spectacle, and are so over-saturated with distraction tech they can’t sit still that long. It’s much easier to doom scroll for 3 hours while texting several people simultaneously than it is to pay attention to one serious topic discussed in detail.
I used to do culture jamming pirate cinema shows (including some at CCC) and found unless you present soundbite sized material with topic change-ups throughout, people simply cannot stay focused and will lose the thread within about 6 minutes on average.