Heh, in all honesty there's quite a difference between spoilers and the need to focus on game development. If these guys had to keep releasing updates it would get in their way: we'd be asking them how to play through this part, we'd give useless input, we'd incorrectly assume things are already finalized, and we'd hamper them till they gave us the response we wanted, which ultimately takes away their time from the actual project. Like I said, we're curious by nature, so I can understand why we'd all want to see updates and hear commentary and such, but I'd much rather just see these guys spend their time the way they want.
That's my opinion, you're welcome to have your own.