Heyyo! I don't know that Nick would even really know much about Kit. He was really young when Nick was banished and then when he came back and took over, he was out of the fray so Nick wouldn't have really had a need to know who he was until he left to join the other pack. The irony is that Nick doesn't see his taking over the pack being a crime. It's part of pack life. There can be a challenge for alpha, but unfortunately there will be bloodshed. It's turning out to be pretty crazy how many people were so loyal to the former alpha that they were willing to sacrifice their lives for him, lol.
Honestly, Nick could care less about more submissive types. They're hardly concerning after all, but he would make a point to keep better tabs on Kit after he joined the other pack.