I think you are right that once the exercise becomes hunting for a scapegoat it's pointless. However, it can be a way for everyone to understand the system bet

I think you are right that once the exercise becomes hunting for a scapegoat it's pointless. However, it can be a way for everyone to understand the system better. The goal should be making each of the dominoes less likely to fall. Doing so can simplify rather than add complexity.