No, but the same people with the same attitudes and similar practices are the ones that are responsible for keeping your system safe. If they can't use good design and best practices to keep their own systems secure, then what hope does anybody have that is trusting them?
Also. For software projects that are compromised and find out, how many out there don't realize they have been compromised? I can pretty much guarantee you that it's a non-zero number.
It's just as likely as not that this is @homakov fellow is not the first person to use this bug to hack into github.