"Did I mention anything about either of those?"Yes you did ("the only thing I consistently read about ruby & python web apps are deployment issues"). That was the reason I used them as my examples.
On your second point, I never assumed anything. I used two examples of common things that where said a few years ago about both languages. It had nothing to do with what you use, more power to you if you use windows7 and .net, it had to do with the fact both where misconceptions that where later proved to be non issues.
I didn't mean to be patronizing or anything, I guess what I really wanted to say is that if you keep reading that Ruby and Python have all this massive issues, you're probably reading articles from 2008 ;)