So I clicked on "How to do an In-Depth study ..." and was somewhat surprised that the first quote given there was by Charle Ryrie, who is a Dispensational fanatic. If he's an example of someone who uses these methods of study, then I'm not buying it. So right off the bat, it appears that your whole post may have a dispensational bent to it. I hope I'm wrong, but if that's true, then to do God's work in the world is to spread dispensationalism, right? Later in the video, Rick Warren is giving some suggestions for Bible study and yet he has been disfellowshiped from the SBC, because his church ordained 3 women as pastors, which goes directly against Paul's clear instruction that only men can be pastors in the church.
If those 2 men are examples of what we can expect when we follow this video on "in-depth Bible study", then, no thanks, I don't need false teaching.
There are other issues as well. I've never been able to see how an in-depth Bible study can take place in a group. I have attended a Bible study for close to two years, and I don't really think I've gleaned much at all spiritually, but I have made new friends, and I am grateful for that. On the other hand, I have had my understanding of scripture reinforced because of the countless times when individuals in the Bible study have expressed view points that I definitely don't believe the scripture teaches. So I could say I learned more about what not to believe rather than what to believe.
Also, God has put gifted Bible teachers in the body of Christ. When we are fortunate enough to come across one or two, we can learn more from them in 5 minutes than months of Bible study either in a group, or individually. I didn't see that this video even mentioned that. A gifted Bible teacher doesn't claim that his interpretation is right, and all others are false. He humbly submits his view and even alternative views are presented, but he is willing to explain from the scripture why he believes his view is correct and other view are not. He often adds, "I could be wrong." A "teacher" who is not willing to do this is not a true gifted Bible teacher.
Finally, there's very little information in the Bible that we can't use - if that was not true, then why would God waste His time putting it in there?