Ggp didn't make much of a point at all, just implied that the church had longevity because it wasn't obsessed with numbers and money and instead just cared about listening to people, with the ancient example of once a week in exchange for board.

Gp then sarcastically pointed out that they are, in fact, extremely obsessed with numbers and money and asking for money and growing that money.

I don't want to speak for gp too much but when I read that I thought it did a great job of pointing out why the implied causality of the church longevity wasn't correct (or at the very least wasn't enough of the picture).