Well, Rubber, here's the problem, most of these conversations don't just start out of thin air. Most are a result of developers actually trying to instill a realistic physics/fluids engine into their games. As such, we marvel at them when they nail it, and criticize it when it's nothing special.
Additionally, as time passes and technology evolves, people expect improvements, an evolution, if you will of the realism/design in games. Not all games, hell, not even most games, but the ones that attempt to hit the bleeding edge of tech? Absolutely.
And the best thing about the gaming industry? If you don't like it, don't buy it, don't rent it, don't borrow it, and most importantly, don't play it.