I think the quality of the program is irrelevant. I think the BBC were fairly responsible for journalists - who normally quite rightly get a slagging on this forum.
1) They didn't try to smuggle knives/bombs/guns etc through security like the tabloids
2) They obtained 1st hand accounts and evidence.
3) The evidence was handed to the airport BEFORE the program was aired.
The most worrying aspects were
1) Made up hold bag counts.
2) Failure to search enough random bags (3 out of 1000?!)
3) Security staff themselves going through security without passing through metal detectors (if aircrew have to, why not them? - They are supposed to).
4) A cleaner walking around the detector with a huge gashbag.
5) Using a broken metal detector
6) Transfer pax going through an unmanned security check point, sent back, then 1 bloke not watching screen as loading bags (screen not actually on)
However, the bit about the spotters corner was rubbish - they actually aide security.
Security at MAN has been visibily tightened recently, so thanks to the BBC.