If you asked anyone in history prior to the 1820's, "Do you know what the doctrine of the Rapture is?" You would have heard crickets in their response. No one in church history had espoused a view of what is now known as the Rapture, or at least anyone with any theological weight behind them. So, where did it begin? How did it develop as a teaching? Who influenced and popularized the idea? And how did the teaching effect the church at large?
Please listen to the entire episode before you make any judgements... This is always a healthy and mature way to approach any subject of study.