Importance:
AWA
AWA explains that some keywords require manual approval.
AdWordsAdvisor Says: [
Link to quote]
Sometimes, due to the potentially sensitive nature of particular keywords, we require an AdWords specialist to review the keywords before we serve them any impressions. I suspect that this may the issue at work here.
When you have questions such as this, by all means contact AdWords support to inquire. We will be happy to provide you with the particulars.