i think you might feel that way when you consider DeuSex is eleven years old; i played it back then when it was *groundbreaking*. There is no progress except for the graphics. And the first game has more consequences.
Completely false.
The augmentation system is much more complex, giving more options to the player and having more interesting augs. The augments in DX were lame in comparison, and I rarely used most of them and didn't care for either of the 'choices' half the time.
The fighting in DXHR is obviously improved over DX, from gunplay to an actual cover system (which DX lacked sorely), and number of weapons.
The AI is much, much improved. In DX I could just run into a room and kill 5 guards with a sword before they could even shoot me because they were too busying running around in circles trying to figure out path-finding. Not to mention I could more easily stand in a corner and pick off guards. At least in DXHR the enemies will investigate things.
Not to mention pathing/placement. Guards in DX where put miles apart, making single kills sooo easy. I was rarely even seen in that game. I had double digit healthpacks all the way through.
The dialogue was also a lot better in DXHR. DX felt like a cheesy movie (i.e. hackers starring Angelina Jolie), while a few of the conversations in DXHR felt real, and got my emotions stirring. The entire time I played the original DX, it felt so cold. There was no emotion in the plot. I didn't care about half the things that happened, as the characters were so flat.
And how are there more consequences in DX? Barely anything changes, no matter what you do. Kill or not kill this seemingly important person? Doesn't change a thing. You didn't have a choice throughout 99% of the game over important decisions.
Sure, the original DX was great for its time. However, DXHR improved over every aspect. If you disagree, it is your nostalgia talking.