to be indicative that maybe the Vulcans aren't particularly skilled with helping human children deal with PTSD. You saw Burnham's reaction when she was offered a kind word about her skills from Georgiou. Then she later says to Sarek that he was never one to bolster her self esteem. That kind of cold upbringing can make a kid smart but I don't think it would help one recover from the kind of trauma Burnham's been through.