God made elephants big. He made whales enormous. But even their size has its limits. There are trees on this planet that last thousands of years. Even they die.
Growth is not the point. Size is not the point. Long life is not the point.
In this fallen world everything dies. Everything has limits.
There's only one way for life to continue. It's called propagation. In the real world if you're not propagating, you're finished. Eventually.
You can be a mega church of 10,000. You can be a cafe church of 10. If you're not reproducing, you're finished.
Church growth is not the point. Church propagation is.