The soldiers were awestruck when they saw the village of the Bishnois, yet they were ready to destruct that peaceful and healthy environment. In what way would they not only damage the environment, but the faith and trust of people as well?

They would have harmed all of the animals and insects living within the forest,

and they would be brutally breaking their promise from before by making the deaths of the people who sacrificed their lives for the trees and animals look meaningless, and the king would be breaking his promise to the people by falsely telling them fake information

breathe, think and analyze the situation, pull them aside and talk to them about it