This can be a sticking point for some players, actually. When you can heal all your troops by just sitting around long enough (as long as you're not on a timed map, more on that gem in a minute), it makes for some unexpected and sometimes dramatic lowering of the difficulty. While this may make the game more accessible to the casual player (and Lords will likely get picked up by many on name recognition alone), it will strike the RTS fan as unbalanced. It can also be frustrating in multiplayer, when someone can just keep on running away from you and come back to poke at you guerilla-style. This tactic only prolongs a successful war of attrition, rather than adding a new dimension to the experience.