I would have loved to have written more in the comments section thereof, but hadn't the time, so I focused very briefly on one question he raised, which, it seems to me, is a terribly important one:
Why do so many fall into the trap of groupthink and blithe rationalizations?
To which I wrote:
The short answer, it seems to me, is:
Because it's easy. Resisting groupthink, on the other hand, is hard.
And most of us are lazy.