There's a phrase in the article:
"This led to the building of Siloah Chapel in 1890, though local religious fervour was short-lived: the chapel closed after just 33 years."
It wasn't a lack of "religious fervour", as they suggest: it was WWI. In the 1890-1914 period there was a rapid expansion of religion in terms of Christianity in the UK. But the advent of the war, which destroyed an entire male generation, saw the survivors, comprising many bitter and resentful men, returning to their homes and families and met with a lack of employment, the pandemic of Spanish 'Flu and many having to cope with serious injuries and PTSD, long before it was recognised as a serous life-changing mental illness.
Hardly surprising that religion was viewed as having failed them.