>100% of the land that can pass the community review process is profitable to build on.

The thing to look at isn't the after-the-fact windfall profits of successfully getting through community review, but the forward-looking expected profits of trying to get through community review. You don't know ahead of time what will work - the profits from the ones that do have to fund the losses from trying and failing to get through community review, else the whole thing will consistently lose you money.

Here's an advance prediction: the average profit from a successful project that gets through community review times the probability of success is roughly equivalent to the average loss from failing times the probability of failure.