Disagree, he earns it. The way you presented the character arc is misleading and doesn't represent the actual course of events as well as how and why they took place. You are way oversimplifying. It's like saying..... PrimeKirk gets lots of alien tail during his five year mission, and then is promoted to Admiral! At the time of the crash, Spock was the commanding officer. Kirk was dead. I agree with what others said though, yes lives were lost in the crash, but the alternative if Spock had not crippled the big bad ship would have been far far worse.