They are also human beings like you and I.
Nobody is above mistake. It was a mistake from their end. Just ignore the request for your
wife's FBI and state PCC if she has never lived in the US for 6months or more since age 18 and submit yours.
Remember to submit your wife's PCC and your from all countries you have lived for 6months or more since age 18.
DO NOT ignore the Wife's PCC request from CIC even if she never lived in the US, instead send in your PCC from FBI and state with a cover letter stating that your wife has never lived in the US or in any of the states and therefore you are not including her PCC from the US. You need to let them know why instead of just ignoring their request which is obviously a mistake or misunderstanding.