People with very complex environments make me think they spent far too long developing a theoretical methodology, and too little time actually hacking and using stuff.
I've worked with really awesome people who are completely lost without [insert proprietary single-platform editor here].
I had to telnet into a Centos box recently and the only thing I could find was vi. Took me a few minutes but I managed. I was proud. ;)
Knowing/using ssh way more important than vi/vim.
And this is bad why? I'd rather be 100% productive for 10 years and then retool than 80% productive all the time.
I'm essentially dependent on Eclipse when doing Java. It takes me < 1 hour to get it set up the way I like it. For the next 2-3000 hours before I need to set it up again, I will outperform and produce better quality code than anyone using vi or emacs, guaranteed. Sounds like a fair tradeoff to me.
Back when I was on a Civil Engineering path, an elderly engineer said "I bet you don't even know how to use a slide rule, what do you do when the power goes out", to which I responded, "I go home, same as you, unless you've got candles in your desk too, and let's not even get into air conditioning".