Rob said in the original announcement - "As I mentioned in prior news posts, we're going to need to slacken the pace of updates from about 100 a year to about 80. There were a number of different ways I thought about doing that, but I settled on this approach: Update schedule will still be Tuesdays and Fridays, but expect us to miss about two updates a month, without announcements."
He said expect 2 skips, and then said they will be unannounced. Not lets do 2 skips unannounced, and then other skips will happen that ARE announced. So Rob's dialogue doesn't suggest what you're saying, only his history with posting the comic, which I kinda got at the post after the one you quoted.
Yeah, indeed. Although, he doesn't get paid if he doesn't post so I think he's only shooting himself in the foot.