Could be.
It's also because the 'representation' of damage is too simple, compared to the process of taking damage that happens within the game.
Like, for instance, in R/L, when you fire your main guns against another enemy tank, you'll see where it hits and how it hits..see and observe if the shell impacted right or not. When you're in a tank, when you get hit by a shell you'll able to feel how it hit and how it damaged your mount(and then probably die...). However in a game, it's portrayed with a hit sprite, smoke, and a simple damage list - so what actually happened with the complex calculation, is not accurately represented to the players eyes.. in the end, they begin to think something is wrong.