Because religion has always been traditional.
Modern and Traditional does not go together they clash with each other. Ever since the industrial revolution a lot of countries dropped religion in the name of capitalism.
Its always about making money. Nowadays you see the affects. Religion is becoming irrelevant as the day goes by. We see it as Christianity is falling.
Us Muslims dont like to admit it but we are next on the chopping board.
When a nation progesses in science and technology it leaves behind traditions, culture and religion. This has been going on ever since the Industrial Revolution.