People have no attention span. It takes real effort to condense and summarize the key points to such an audience. Once intrigued though, they may continue on to read/watch/listen/learn from other sources.

Conversely, there is just too much going on in the world right now, to pay attention to every single thing that wants us to do so. Like a crowded marketplace with each seller yelling out their wares - it is the correct decision to tune most of it out while straining to listen for what you need.