Wow this is inaccurate

1) this is just a outhouse, not a temple, a grove or even a longhouse
2) there is a vast time difference between them so yes the church will be more light up
3) if wanted a fair comparison should have had the Parthenon or Stonehenge or any other pagan place of worship, even a freaking forest

So the only reason someone made this was either because of sheer ignorance or out of fear that more people would prefer a sacred grove in a beautiful forest or a tall amazing temple with huge statues made from precious metals like gold than a tall brick building lit up by lights in the middle of a city