If they could prove that it happened they would. Plain and simple. It is the ultimate marketing strategy for their church. Imagine how many new members they would have willing to donate thousands of dollars a year to their church if they could prove a miracle like this. To OPs point though, they don’t have to prove anything because there are desperate people out there, people whose kids have terminal diseases or incurable diseases themselves, who are willing to throw money at the church because they need a miracle. All of this media attention and attention from the community is costing them nothing so every time a believer now chooses James River over a doctor they make pure profit.