The first Crysis made such a horrible loss they had no choice but to develop the 2nd one for consoles too.
That's because the game was hugely delayed, wasn't very good and was horribly optimised. Even four years later I get framerate drops with a Core i7 @ 4.6GHz and GTX680 SLI setup, which is just ridiculous.
DirectX 11 didn't suddenly make AvP3 a good game, nor did it make Crysis 2 any better. There were just extremely subtle differences. You seem to be artificially limiting yourself from a tonne of games over a trifling matter.
Graphical improvements can't make up for a bad game but they can improve a good game. The DX11 features in Crysis 2 were certainly worthwhile, the tessellation especially. The point is more that the lack of such features indicates a poor port, which can mean other issues (like poor performance, bugs, etc). There really is no excuse not to include DX11 features nowadays - the lack of DX11 support certainly isn't a deal breaker (The Witcher 2 and Borderlands 2 were awesome) but it does make it less likely I'll buy a game and can diminish the experience.