[1][3] Scobee tells Sweeney of how details of her sex life before she was married were leaked to a newspaper after she left Scientology in 2005 and criticised the Church.

[1][3] Shortly after The Secrets of Scientology premiered, the Church created their own documentary regarding Sweeney and Mike Rinder's activities called Panorama: Desperate Lies, not only listing off further alleged violations of BBC and Ofcom Broadcast Codes in both of Sweeney's programs, but also attempting to further discredit Church detractors featured in the documentary.

[8] In a review of The Secrets of Scientology, Metro commented, "Thankfully, there was exemplary investigative journalism on the show, with the BBC man unbowed by closed avenues of inquiry or alleged surveillance.

"[14] Fiona Mayhem of Watch With Mothers assessed the documentary as, "a bit of a disappointing effort which could have been made more entertaining ... or more informative, by exploring more what it is about the tenets of the cult that former members still hold so dear.

[17] In an analysis of the documentary for Catholic Online, associate editor Randy Sly noted the programme's ratings success in the UK, and commented, "People in England seemingly can't get enough when it comes to revelations about Scientology.