CLEAN : Christians in South Sudan re enact Jesus crucifixion for Easter

The video tutorial begins with an introduction, during which audio issues are noted. It then discusses unexpected events that may occur, emphasizing that some should not happen. The tutorial concludes with observations and final thoughts.

Why might the speaker say 'Shouldn't happen' in the context of the audio?

What does the phrase 'Interesting. Full stop.' suggest about the speaker's reaction?