[zaat]

If someone is sloppy and not willing to change he should be shown the door, but not because he caused outage but because he is sloppy.

People who operate systems under fear tend to do stupid things like covering up innocent actions (deleting logs), keep information instead of sharing it etc. Very few can operate complex systems for long time without doing mistake. Organization where the spirit is "oh, outage, someone is going to pay for that" wiil never be attractive to good people, will have hard time adapting to changes and to adopt new tech.