There are really many realistic games, so it's nonsens to create more. DP2 main idea is to jump high, all maps are designed for that physics. So, go play CS, AA3 or idk if you think realistic=fun. Every new game is more realistic, just better graphics, and where is gameplay? DP2 is going to keep this physics, as we don't want make this game realistic all the cost, but keep it fun.
And also, i hate people which review DP2 saying that "it should get good physics engine" - If someone doesn't understand what in DP2 gameplay is so special, he shouldn't play it.