But Luke is not the representative of an interstellar threat. He’s not in charge of an army. Kylo Ren is. Both characters are so different you can’t compare.
We can if we let go of this double standard we have on heroes and villains having to be on completely different wave lengths. Also we also need to acknowledge what type of villain Kylo Ren is in TFA so that when he evolves in the later films we can relish the change in his temperament.
“Long before we had this title, the idea of The Force Awakens was that this would become the evolution of not just a hero, but a villain,” Abrams said. “And not a villain who was the finished, ready-made villain, but someone who was in process.”- JJ Abrams