This is a perfect example of how you misunderstand Wayfarer. Wayfarer doesn’t approve PokeStops. The process approves Wayspots. Those Wayspots go onto a map and then Pokemon GO has a completely separate process for determining which ones it will use as interaction points in the game: PokeStops, Gyms, and Power Spots.
The reviewers, both paid employees and volunteers, are reviewing based on Wayfarer criteria, not based on whether something would be “good in the game.”