I think the primary thing to blame is social media etiquette, and people's (everyone; not simply Christians) inability to use whatsapp groups properly. It seems that the author uses this as ammunition to push the agenda of his anti-religious views (I find it funny that he says "I don’t like to write about it (religion) for the same reasons"). 

As a Christian, who believes in the creator of the created (like a building being proof of the existence of a builder), I cannot persuade Ivo to turn to Jesus; however, it is my prayer and wish that he comes to know God personally like I have. Us humans are fallible (evil/sinners) by nature, and unfortunately there are many luke-warm Christians or even Christians who misrepresents Jesus, where others might get hurt or offended. It's very sad to see, but the bible tells us about this and everything that is wrong with the world.