I think much of the Calvinistic resurgence is the result of a period of decline in doctrine within many churches. People who see a void will seek to fill that void (and there was a void).@JonC . Someday. I wish somebody with a theological background, who is fairly neutral, would write book about the Calvinistic resurgence that took place in the last 30 years. For laymen, like most of us on here, it has been confusing and has left a lot of animosity that will not disappear in my lifetime I'm sure. This may be off topic but I think it explains some of the stuff you see. I just got to thinking about that when you mentioned your professor. I wonder if this started in theology departments or was it grass roots?
That was my experience anyway (not how I became a Calvinist but what led me to seek an undergraduate degree in religion and continue on to seminary).
I started realizing that I held beliefs I truly had no right to hold. I learned what was taught, but didn't work out that doctrine and really could not defend it against other positions.
For me it started with doctrines like OSAS (a belief I still hold). I could give you the doctrine and supporting passages, but I could not defend it against other interpretations. This led me to transfer to another college and change my major from business to religion.
I believe this is why we saw the resurgence in Calvinism, and I believe it is why Calvinism has often become a stepping stone for many (as we now see a decline in, or revision of, Calvinism).
I don't know my professors background prior to teaching.