That is an opinion. I like that CoffeeScript allows me to have more choice over how I write my programs. If I want to write a piece of code in a different way, I can. If I don't think it will improve readability, I won't. You don't have to use all features of CoffeeScript all the time.
Plus, if you don't like it at all, just don't use it and quit complaining. :)
I think the point of this article is that because of Coffee's wide use, developers will often find themselves in a situation where they can't "just don't use it".
You could say "don't take that job", but I think the point of the article is to make it clear that CoffeeScript is not an unvarnished win, and that choosing to use it will result in otherwise qualified people taking your advice and not wanting to work on your project.
Plus, if you don't like it at all, just don't use it and quit complaining. :)