Look different groups have different tastes when it comes to gaming. It just so happens that there are more people who want to play Risk than The Campaign for North Africa. That's not an indictment or even saying one approach is "superior". If games streamline concepts like carrying capacity, rations, torches, equipment breakage, or ammunition, it's because the developers believe the people who play those games will enjoy the experience more. If that's not true, they're perfectly welcome to switch to a game that has these features or houserule them in.