To be honest I don't know the details, but the article sounded like a load of horsesh*t.
There is no check of boarding pass when you go through security, nor should there be. Security are there to remove dangerous items.
Yes you can waltz past the person at the gate, but that doesn't mean they haven't seen you. Security was called to the aircraft to remove the woman, story over.
The Mr Martin in the article looks like he was itching to see his name in the newspaper, and has achieved such while making himself look like an idiot in my opinion.