You have a point, but you get what is on the market. You can argue that CH is doing it for the money, but it is under the frame work of the ASL rules for combat, terrain and vehicles and people by their stuff. I agree that using ASL rules for modern warfare, with UAVs and modern ordnance is probably beyond ASL. But if people buy it they add money to the market. If you are interested in keeping ASL to only WW2 you are limiting the growth of ASL and the profit margins of Hasbro and Multi-man publishing. Avalon Hill was one of the major players in wargaming in the past, so was Simulations Publications Incorporated (SPI). Where are they now? I don't know the profit margins of CH and Multi-man Publishing but I would not think it is that great. Please note that modern weapons started with machineguns in WW1, followed on by machine pistols and finally assault rifles by the Germans. The concept of a turreted tank started before WW2. Much of what was developed in the 1950s, both ground, air and submarines were based on German WW2 technology. So basically the M-60 tank is an updated M-46 tank.
I would argue that Critical Hit and the other minor producers drive Multi-man to do things to stay in business. That is not a bad result.