Honestly, I would have done exactly the same thing as him if I were in the same position.
I think however we as founders can easily get focused on tracking metrics that in the end amount to fairly trivial things. They help us make changes around the margins, which can payoff big or just be small gains.
I think what he did was a good exercise, however the whole post, analyze, post thing though is a tad navel gazing for my tastes.