It is not business... It is gospel

I read an article from Mark Priddy at Ooze "It's not business... it's the gospel", and I think he went deeper when I talk about Marketing and Church, he described a mind of marketers trying to sell church. As I were reading his attempts to make a campaign for the Gospel I sensed what he concluded later, a pure reducionism of the Gospel.
Thinking about making an ad campaign to bring more customers to church, and improve services to make them repeated customers, make me think that sooner we will not have the same gospel, this because these customers will change for a new one as soon as customers find a improved version of this, they will change them as they do at market. Churches will have to launch a better version later.
It is reducionism! As if following Jesus words were not enough.
I am reading the book about Solomon Porch, and I am appreciating all efforts from Doug Pagitt and his community to run out of all marketing attempts we have in church and exploring community and gospel for themself, it seemed more authentic.
When I was studying business administration university, I ever related all classes I was learning to church, I am the type of applying everything I read and do to the Kingdom, but seeing all exaggerations, I can conclude that Jesus brings much better solutions than Kotler.