I think you're right about it being like Google's Web Starter Kit. The WSK feels a bit more sparse and less idiomatic than recroom, but it's definitely in the same vein. I haven't checked it out since it was announced a few months back though, so maybe it's grown since then.
I'd love to see people do that to recroom -- add what they think is missing. Pull requests are definitely welcome. My aim is to take the headache out of decisions like "Which framework/tool do I use?" so you can get to writing code if, like me, you don't really care which tool you use as long as it works well.