It seems unlikely to me that that could work if they didn't have the force to take the walls attacking all together. You'd need a lot of archers for the infantry to get seriously slaughtered doing that, and then the most you're getting out of it is maybe lower attacker infantry casualties? At the cost of higher attacker archer casualties...
I suppose we could, perhaps, adjust the code so that if there are no attacking infantry, and no defending archers, the defending infantry just hunker down untargetable behind the walls, and it ends in a stalemate...but without also changing the code so that this would prevent the attacking archers from just walking past unmolested, I don't think it would actually make people happier than what there is now.
I used to work well when archers could do a lot of damage to infantry units. Since enemy archers will be doing only 1/4 damage due to the range damage reduction, you can pretty much ignore that and focus on taking out enemy infantry units. It works pretty well against militia units since once they are scattered or retreated, they need more time than players to rally their men. But you do have to attack right away after the battle though.
