if it plays at all in directx 11 mode it supports it. just the slow intel GPU cant handle all the eyecandy and be smooth.
Steam called it Direct X 10/11 mode, so I am actually not certain that it was playing in DirectX 11 mode. And, I don't have Direct X 11 installed so actually, I am sure it wasn't playing in DX 11 mode. . .
PS: I had the setting set pretty low and it was still unplayable.