I don't think it's fair to marginalize the work that the Docker community has put in to it so far by saying another tool is doing all of the hard work. You could go down the stack and always say that about technology. That's what makes it so powerful.

I also would not categorize Docker as a 'little wrapper' around LXC. Sure, Docker uses LXC as a default container provider but it could have just as well have been raw cgroups/network namespaces, libvirt, openvz, or any other abstraction that suits the core abstractions of Docker.