Wow, yeah. I wouldn't complain personally, since I love CoffeeScript syntax, but it is pretty odd that it's not mentioned at all. Edit: As seen above, it's mentioned now, so I'm happy :)

It's still a little irritating that they've changed things that CS handles quite elegantly to be less expressive, presumably just out of a desire to be different. I understand changes to the syntax are necessary for various reasons, but something like ! for argumentless function calls instead of () just seems like needless divergence. Was that extra character really killing you? Is the confusion with other meanings of ! really worth it?