Grissom really got screwed throughout his career with NASA. He was the guy who allegedly "blew the hatch" on his Mercury mission, and then he died during his Apollo training. His reputation to most people will always be that he was cursed or a failure when, as you say, he was actually a highly skilled, intelligent, and competent man. He was also a complainer and a shit-stirrer, and I liked that about him. You can hear him complaining in the audio recordings from the morning he died.

It's criminal that we'll never know what he knew about NASA or what they did to him and countless others.