Well I wouldn't fret too much about AMD doing something similar. Right now they've got their hands full just optimizing performance and swatting bugs, let alone actually adding anything new. :p:
I'd agree with you in TF2. It adds next to nothing in those shots and can even create artifacts, such as the pixelation under the pipe.
http://img.photobucket.com/albums/v7..._artifacts.jpg
But in the other two games where the art direction leans towards more realism, it's my opinion that the addition is a positive one.