Gabe, I can see your point but like Adam said, I think this is a backlash against our straying ways. I really don't think he preaches like that in the mission field, I think he does it in the US because it is so deeply needed.
The other thing is, we hear a lot of "don't major on the minors" from the pulpit (usually attached to a "legalism stinks, Calvinists" sermon). And that's fine. BUT we should at least minor on the minors, and most of us don't.
I haven't had a chance to finish listening to the first sermon. Here is where I agree with Gabe so far:
The message is true - American Christians are decadent and self-centered and are full of confidence in a mostly false Gospel. Their lives bear no evidence of a transformed life with Churches full of dead men and pastors who preach to itching ears. His message is a prophetic call of condemnation to a generation that is asleep and needs a reminder of the sobering truth of the Gospel of Christ.
Where I see the strength of his call is the underlining of the LAW - you are condemned! You need to flee from the wrath to come.
Where I see the deficiency is this: he really does not offer Gospel. His constant call is "You need fruit!"
True, again, as far as it goes but how does a man produce fruit if he is a thorn bush? He seems to be implying that they need to generate that which is generated from a re-generated heart.
He should be calling them to belief in the true Gospel that transforms and produces fruit. He's leaving them halfway there. It is my estimation that fruit is not present in most Southern Baptists BECAUSE the Gospel is mixed with pietism: Don't do this or Do this to become a better Christian. What is not lifted up regularly are the demands of the Law (as he does) along with the regular remedy (Christ our righteousness in Word and Sacrament).
I can probably imagine some kids were really convicted by the sermon and I am too. It reminds me of how far I fall short but these are the things that I regularly reflect upon because I'm constantly aware of my failings. I am prone to self-examination to the point of thinking that I'm ultimately saved by my sincerity of belief and "do I really have enough fruit or am I deceiving myself."
I think a sermon like that is useful to wake up deceived and self-righteous people who think that God is playing games with salvation and isn't really serious about wrath. American Christians need to hear a message of God's Holiness and be terrified so they can really appreciate the glory of the Gospel.
But, again, his message is Law. It doesn't really provide the full remedy and full Gospel. He leaves the actual Christian with the idea that you need to look to yourself ultimately to make sure you are bearing fruit or you will be cast aside.
To me, the fact that he is Baptist and has a poor view of the benefit of the Sacraments makes his complete Gospel message somewhat defective.
I don't mean to sound negative as it is very edifying but it's just missing something. Read the book of Hebrews to see how a "pastoral" presentation of God's wrath is followed up by the assurance of the belief of better things for God's elect. We need to be scared but then we need to be reminded of the means of Grace that God uses to uphold us lest we focus on upholding ourselves.