Hyperbole aside, this is ridiculous. It’s called the gospel. Marketing is not a negative phrase or concept that churches or religious orgs should shy away from. “Navel-gazing” and “not spreading the word,” however, are according to the Gospels.
The marketing of the church is an invention of the Antichrist. If you have to ‘sell’ your Church, it isn’t a Church that you’re selling and you are a pagan pretending to be a Christian.