The question of who is they? "Will they not then ponder on the Qur'an? If it had been from other than Allah they would have found therein much incongruity."
captndisguise...Who is "they"? Is it ordinary people or Muslim, non Muslim, Ahl Al Kitab, Pious, Righteous etc who "ponder on the Qur'an"
You are still not addressing the argument presented here -
http://captaindisguise.blogspot.com/2013/02/qurans-error-sura-482-if-quran-had-been.html.
"They" is referring to those who don't believe Qur'an is from God. And then it gives a false conditional statement in an attempt to defend its divinity.