Civil Aviation - nothing to do with Flybe period.
If the queues are that bad can we assume you will leave more time next time you are through Exeter? Maybe use Flybe online checkin? I apologise if this seems somewhat harsh but it is so frustrating that the minority of people who have problems take no responsibility for their own actions what so ever....why for example did you only leave 40 minutes knowing that security is sadly still an issue at the moment?