I had a similar thought: why would god allow such a powerful enemy free access to pitiful humans. Think about it. Human mothers were lucky to see their babies live past the age of 2 or 3. Famines and a severe lack of food were common, as having enough food to ensure you or yours made it through the winter or the drought was unlikely. In addition to being killed by each other, the weather, elements and unseen pathogens and viruses would ensure that the average life expectancy was at best 34 years for tens of thousands of years.
Kinda seems a bit unfair that the big guy would let loose such a roaring lion seeking to devour someone. Humans would be easy prey. Unfair, unlevel playing field. Thanks god.
Until I realized they were both make believe people. Then it all made sense.