There is nothing to fear from studying this stuff. It won’t threaten your faith.
Just as the invention of the printing press gave us the reformation, the invention of the internet and search engines is blowing up Christianity, but in a very good way. It is being purified. The layers of BS are being peeled back before our very eyes, revealing the core of our beliefs.
I have spoken to several who visibly blanched when I raised the issue of Gen. 6.
That said, a lot of the sources this author cites are from top divinity schools. The divinity schools seemed to encourage scholarship in ancient "evidence."
In my Bible study, I read commentary at the same to understand the context in which the Bible was written and I have learned so much that I never learned in Sunday school and in sermons.
It is fascinating.
And when you add in Heiser and people like Prof. James Kugel ("The Bible As It Was"), the Bible is the most exciting thing ever written.
If I were a youngster today, I would definitely major in Biblical archaeology or something similar.