It would be interesting to see what the code linked to. Computer systems dont rely on one line of code but to what each line relates to. In my business its called a root cause, and I think that term is very widely understood. How that root cause could be understood so accurately and so soon is a mystery to me. In complex systems a simple root cause is very hard to find.
In the main I repeat my previous post. The emergency measures worked well. its good that they did.