In a world where it can take weeks for other companies to publish a postmortem after an outage (if they ever do), I never ceases to amaze me how quickly CF manage to get something like this out. I think it's a testament to their Ops/Incident response teams and internal processes, it builds confidence in their ability to respond quickly when something does go wrong. Incredible work!
Doing incident response (both outage and security), the tactical fixes for a specific problem are usually pretty easy. We can fix a bug, or change this specific plan to avoid the problem. The search for conditions that allowed the incident to occur can be alot more time consuming, and most organizations I've worked for are happy to make a couple tactical changes and move on.