As someone who went into cruising largely because it is a much simpler lifestyle, I can see the point. It is nice to not have the surprise spoiled when you haven't seen someone in a while.
But here's the thing. A lot of people ask what we are up to and it's nice to be able to direct them to one place where everything they want to know is kept and where they can get all caught up. Also, when we're living a life that is a little less pedestrian than the usual " got up in the same house, went to the same job, did the same routine" life, it seems too much like bragging to send people emails saying how much fun and adventure we are having while they're stuck reading it in their cubicle. This way, people can get to it at their own pace and read when it's convenient for them.
As for Angie and the others, we'll just call you from time to time.