It's easy to get negative about a seemingly narrow technology. It's easy to want to compensate by becoming overly optimistic. I have trouble fluctuating between these since it's also easy to make convincing arguments for both -- point to a swell of articles for progress, point to a stagnation as lack of progress -- but all technologies go through this.
IMHO it's premature to have a strong conclusion on this, and way too easy to let feelings, pro or con, influence our projections.