And ditto the reaction of the community. No aggressive denunciations or vindictive chat - just calm and helpful trouble shooting. +1 for the culture they have created.
Let the programmer who hasn't done something dumb with a Git repo cast the first stone. I know I'm guilty as can be and surely I'm going to transgress in the future. It does kind of show a little bit of a need for a more formal permissions system for Git. Most organizations have something like this in place as policy but that doesn't prevent mistakes.
He means none of them are being jerks - for instance a community of jerks might have responded to the announcement of a pretty inconvenient mistake by abusing the guy who made the mistake.