It certainly made me reevaluate my thinking on the two languages and problem domains. The only small bit I'd disagree with is that Ruby is only used for websites, but I'll hardly create a fuss over that.

If people are looking to poke at you, they'll do it, but otherwise, I'd say, yeah, it's a reasonable observation/opinion.

Do we even want big, complicated ruby apps? I thought the current thinking was that monolithic apps == bad, and smaller miniapps == good. It's definitely much easier to get up and running with a small Rails app that just grows and grows. But at some point, you should step back and figure out how to extract services out into isolated miniapps. We're going through this now at GitHub.