davelj, you are correct, peak oil is absolutely not accepted as fact by all experts. But I would note that CERA is famous for their optimistic view on oil production (not to mention their dismal forecasting record). They come across to me as the NAR of oil forecasting.
To be clear, I realize that you weren’t endorsing the views of CERA, and that you were just rebutting the “observation vs theory” statement — I just couldn’t help taking a shot at CERA.