Maybe that was a bad analogy.
Yes, it was. DeusEx 2 is the worst sequel ever made, if we take the difference in quality between the original and the sequel as the defining measure
Seriously though, it wasn't a good game even on it's own. Gameplay was pretty dumbed down in comparison to DX1, graphics and character animations were abysmal, story was mediocre at the beginning and degraded to stupid beyond all belief as you approached the ending.. horrible. Especially when you compare it to a masterpiece that DX1 was. I take DX2 as a prime example of what consoles can do to a franchise on a bad day..