Just to confirm whether I interpreted your post correctly, are you saying that even if a containment breach occured, understanding the source and how it occured does not matter at all? Procedures would not need to be reviewed, facility design not reconsidered, people or organization not disciplined for failing to adhere to protocol. No learnings to be gained?

I feel the exact opposite. If the source of exposure ended up being proven to be lab-leak (beyond a reasonable doubt), I would want to understand how it happened and what measures needed to be taken to prevent this event re-occuring, even if it only occured due to gross-negligence and not malice.