I've come to the view that CoffeeScript is the marmite of programming languages, and that issues like this will rage on for years to come.
I'd dare and suggest that TJ is JavaScript's DHH; very talented and productive, but also very vocal about he doesn't like.
Programmers are some of the most argumentative people that I know, my father being one of them. When you're immersed in a community, it becomes easy to develop the kind of language bigotry that happens between Rails and Node.js, which is sad and regrettable.
I think that mature programmers see code for what it is and don't get religious or wound up over these things; in the end of the day it's all a bunch of 1s and 0s.