Recently a friend (more of an acquaintance) gave me a sermon he wants all Christians to listen to because, according to him, "it will change their lives."

He even said the following concerning the person delivering the sermon.
I consider him to have more insight and accuracy than the fathers and the reformers.
The fathers and reformers got a lot wrong Tom. The evidence presented is incontestable. Why not give the book a listen then draw your conclusion? You will soon see how much they (and we) have departed from Scripture.

I had told him that although I plan to listen to the sermon, when I have time to actually listen to it without interruption. What you read above was his reply and to be quite frank, when I hear such claims it immediately makes me suspicious.

Am I wrong to feel that way?