I would refine that to say administrators hate change when they have to bear the brunt of adverse effects of change.

When a lot of organizations demand administrators keep a production net stable, with a staging net that bears only a faint resemblance to the production net, and a development net that is a caricature, is it any wonder the administrators despise change? I've been in some shops where the poor bastard administrators only have production to work with, and they are the ones yelled at and the quarterly reviews dinged when a change forced upon them, surprise, surprise, breaks a critical LOB process.

Perl is fine. Your distro comes with it, you download some script off the internet, maybe you have to install something from CPAN, but it generally works. What version of bash are you running? Does anyone care? It's just a default that comes with your system. It's not that sysadmins are objecting to writing python, it's the pain involved in running other people's python that is the source of their complaints. And it is handy to grab a script from your home directory that you haven't run in years but you wrote for that one situation that has cropped up again, and have it still run. That is far from guaranteed with Python unfortunately, but probably works with Perl or Bash.

Nailed it. 100% I'm a believer in python, and even ruby. The problem is that most of my colleagues have no interest in learning a new language. So deploying stuff with it, when there's not enough benefit is really impractical at best, and unnecessarily annoying at worst.

I get where you're coming from, but I will still claim that maintaining other admin's python is preferable to maintaining their perl (or even bash) scripts. So I wouldn't say it doesn't bring anything but change.