DingerX - I cannot see how the security staff can be remotely criticised for reporting their concerns re the pilot being intoxicated.
The Pilot was well over the limit - and almost four times over the drink drive limit! Yes, he was found not guilty due to the fact he was not going to perform his duties but instead to report himself unfit, however the security staff could not have been aware of that fact and took reasonable action when faced with the situation. They reported their suspicions and police acted on their suspicions. It could not and should not have been done any other way.
I certainly hope the staff don't feel they made a mistake, if any of my family are flying and a similar situation occurs I hope the security would do exactly the same.