The patch is a bit bland and I think more could be added on it without a big hit in performance (or at least not as big as the first jump is already done).
I'm not underestimating in any way the work done on this patch, but if it could be made more noticeable it would help to justify more the activation of DX11 and loss of frames per second.
Also, people with DX10 and DX10.1 cards could have access to much of the "new" effects, and as far as I'm concerned multithreaded rendering is not used so it is even easier if not automatic.
By the way, I'm hating my TN panel just for the new color tone mapping.