Wouldn't you like to control him personally during an unexpected attack from a castle?

Exactly, replace the computer-vs-computer battle with player (Lorenzo)-vs-computer.
"We are responsible for those we have tamed." The Taras Bulba option is less appealing.

Lorenzo won this battle, the history of Ashan has changed... the universal, unconditional apocalypse is coming. Who will save the world?

You've already created a ready-made libretto for a new scenario. All that's left is to put it on a new map sometime. Historians write history, but not all of its twists and turns are recorded.
In the original, in Lords of the North, Freya is kicked out of the dwarven castle and wanders through the snows (the upper part of this map is used in your version). However, before leaving, she could have turned around, broken through the gates, and given the dwarves a good beating. And what then? Nothing happened; the planned happy ending arrived. All of this is somewhat distracting from the main topic. Let's get back to our sheep. Lorenzo, under player control, may win, but he will most likely lose – there is an opportunity to see what happens. Experience is never superfluous.