Having just seen the BBC news version - I'll echo those that have said the story has shown a misunderstanding of ATC procedures. LL Approach have operated with a high safety record for years at all three locations of its life, and the vertical and lateral separations used throughout the approach phase are highly efficient WITH SAFETY AS THE PRIORITY. None of us would've done the job day in, day out otherwise.
A shame a 'whistleblower' who now wants "a quiet life" has to part with a shot in this way - and achieves what exactly apart from something towards his 'Warhol quota'? Let's scare the chavs watching the news?
As one senior NATS manager said once (tongue in cheek) reacting to some newspaper report after an AIRMISS/AIRPROX report had made the papers with the inevitable headlines: "...let's face it, all jets ARE seconds from disaster - that's why we're there."