An okay episode but how did the admiral know that Spock was Michael’s sister? I thought all information about her was erased.
I wondered that as early as season two when Pike knew about it just after coming aboard Discovery.
While they weren't yet erased, history has shown that Spock only mentions family when it's relevant to do so. Considering where Spock was at that point, I don't think there was a circumstance to bring it up to Pike.