While I can't speak for others in the "Atwoodian camp," I for one think Atwood's article was that response, to a large degree: it pretty much said that his next big project is trying to bring those strengths to a platform built on another language.
Having said that, it seems to me that there's certainly a fair amount of work being done to make deploying apps in other languages pretty simple. With mod_passenger, for instance, setting up a Rails app under Apache isn't notably more difficult than setting up any other Apache virtual host. Deploying Python web applications isn't quite as simple yet (at least in my experience), but it's nothing that should be beyond the ken of someone who's figured out how to write a Python web application in the first place. And that, in turn, isn't really beyond the ken of anyone who's learned how to write reasonably good PHP MVC code.
Having said that, it seems to me that there's certainly a fair amount of work being done to make deploying apps in other languages pretty simple. With mod_passenger, for instance, setting up a Rails app under Apache isn't notably more difficult than setting up any other Apache virtual host. Deploying Python web applications isn't quite as simple yet (at least in my experience), but it's nothing that should be beyond the ken of someone who's figured out how to write a Python web application in the first place. And that, in turn, isn't really beyond the ken of anyone who's learned how to write reasonably good PHP MVC code.