Pacifism is clearly the Jedi ideal. I actually think Rey finding a way to set aside her lightsaber would have been a better resolution, and a more interesting path for her to take the Jedi order in.
Simply being able to kill the big bad guy is terribly unimaginative and un-meaningful as a victory for the character and for the Jedi as a whole.
Maybe we will learn about those ideals in the some upcoming pre-prequels in a galaxy long long long ago. That would be cool. I agree it would be a great direction to set aside the lightsaber.