Mourn said:See, there you go, with that whole "you must do this" nonsense. You're making up this sudden inability to make your own decisions because the DM gave you some kind of objective that an NPC wants accomplished. Nothing is stopping you from giving the Archbishop the finger and helping the spies. In fact, if you have a DM worth his salt, he'd have a quest card ready for you if you decide to do that.
You are wrong. Nothing, not a single word, in either the article or Mearls' post suggest that you just slap a new quest card down when the PCs decide to do something different. you are "making it up". And I'll even tell you why -- without that caveat, the system is problematic and railroady and not even the most adoring 4E supporter would accept it. but there it is: that is what we've been shown.
You continue to pronounce "nuh uh!"at the top of your lungs and have yet to find any evidence -- i.e. quotes -- to support your position, simply because there aren't any. the original article is vague at best and reiterates typical game play, with the inclusion of player hand outs as a suggestion. The Mearls blog post says, very directly, that the intent is to force the players to follow te DM's storyline, with examples of how that will work and how doing those things will be the only way to get the bonus XP.
So, you can continue to ignore the actual facts in this case and assert things that simply aren't there, at all, in the information presented, in order to preserve your undying devotion to 4E. That's fine. Enjoy. I, however, have quite finished repeating the facts over and over.