I guess I agree with what he says since I have a bit of dark chocolate every day. But he's also selling his own wares. Not to mention that the good doctor is a bit of a quack.
https://en.wikipedia.org/wiki/Steven_Gundry#Criticism
And this business of chocolate together with olive oil? What possible reason on Earth is there to necessarily take them together? Why would consuming them separately during the course of the day make it any less beneficial? Hmm.
Being an advanced student from the internet school of medicine and in-depth studies surrounding medieval Alchemy I can see the benefits of mixing the two, especially if taken with a shot of top shelf Vodka. Na Zdorovie comrade. All I know is I'm eating the serving of dark chocolate daily come hell or high water.