I don't think there is much in there which comes as a great surprise to many of us in this thread. He makes the point that electronic room EQ above Schroeder can do more harm than good - and we know that for this reason Audyssey made big changes to the way XT32 works for the frequencies above about 400hz, compared with XT and other versions.
But he provides totally wrong reasoning on that, claiming our head transfer function has something to do with it, and so - wrongly concluding that anything above Schroeder is universally bad.
Actually I can agree that with ultra-directive speakers he produces there could be problems with the approach discussed. But this high directivity itself is something that doesn't make a good speaker in my book in first place. And providing false reasoning on the problem while protecting his speakers doesn't add my respect to his whole talk. He still hits some truthful things sometimes, but they sound pretty random hits, and not a proper explanation.