That irrational fear of technological change is exactly what I'm talking about. There's a joke around some of my friends, "What's the best way to get a mediocre .NET programmer to stop talking about safety and reducing bugs? Bring up the safest most secure .NET language that exists: F#."
As the joke goes, most of these developers are confronted with the reality that they don't really care about bugs enough to even bother learning a different fully supported .NET language that will find entire classes of bugs automatically and is orders of magnitude safer than C# and is faster to write.
Most people when they have told me they "care about bugs, not languages" have been just saying something nebulous to kill the discussion and defend their life choices.
I'm not trying to be snarky to you, I'm actually very interested to know what changes you've made that are not technological to reduce bugs, fix security holes, etc. I'm always on the prowl for such stuff, and this sounds intriguing.