Sunde God is omnipotent. You can't attempt to break down the mastery of his "methodology" with an anecdote. This isn't a gambling model.
IMO God meticulously crafted all of this in a way to lead humans to question his existence. Evolution is a God-created concept to keep humans off balance. Religion is a man-developed concept.
People pray for different reasons. For some, it's spiritually liberating. Others desire things. Some do it because their religion asks them to.