It's admirable that the advice, in that article, is given to the Muslims by a Muslim man, quite an exceptional man according to Wikipedia https://en.wikipedia.org/wiki/Nazir_Afzal

"Nazir Afzal OBE (born 1962 in Birmingham UK) was the Chief Crown Prosecutor of the Crown Prosecution Service (CPS) for North West England from 2011–15. He was the first Muslim to be appointed to such a position and was Britain's most senior Muslim lawyer within the CPS. He has campaigned for women's rights and spoken out against forced marriage, female genital mutilation and honour killings.[4] He was awarded an OBE in 2005."

Also noteworthy is the Mayor or London who is a Muslim: https://en.wikipedia.org/wiki/Sadiq_Khan
"Sadiq Aman Khan PC (born 8 October 1970) is a British politician and the current Mayor of London since 2016. He was the Member of Parliament (MP) for Tooting from 2005 to 2016. A member of the Labour Party, he is situated on the party's soft left and has been ideologically characterised as a social democrat.

His election as Mayor of London made him the city's first ethnic minority mayor, and the first Muslim to become mayor of a major Western capital. Khan held the largest personal mandate of any politician in the history of the United Kingdom, and the third largest personal mandate in Europe."