You come away with a bigger kingdom as the victor. Clearly that’s not enough for you. Want to steal their resources? Take weapons and convert them to yours? Why stop there, take prisoners of war and force their units to fight for you.
Your ideas continue to make the strong stronger and the weak weaker.
Protection time is a snooze fest. It’s a forced pause. As we’ve brought up in other threads, a very viable solution to that is to make it so kingdoms recover quicker. Increase training speed, increase resource production, increase unit upkeep. This keeps current army sizes, you just get to build them quicker. If everyone could train their current army in half the time then current protection times would be fine. A kingdom that’s broken would be able to retrain in 15 hours of protection and take the retal. That’s basically how long you get to retal anyway because that’s when your protection ends. You’re forced to do something before the next guy comes along and you’re already crippled.