Well, I'll fess up to not making it to 43:40. I got about 20 minutes in and, wondering if the whole talk was going to consist of examples of unpredictable C++ behaviors, I came to this comment thread and saw dmunoz' summary, so I gave up.

I just loaded it up again and went to 43:40 and yes, that's a good conclusion: the thing D doesn't need is an overly-broad list of design principles. I do think he could have come to that conclusion a lot quicker and with a LOT fewer examples.