The 777 and 787 beat it on fuel economy, and only NYC is really slot-constrained. I'm not even sure if more A380s mean more passenger throughput since the super-jumbo needs longer separation between aircraft on takeoff and landing for wake turbulence. So what's the point?
Yeah, it is a negative article, but just seems obvious they took a risk and overestimated the market. When they jumped in with the A350 to compete with the huge orders of the 787 it was a tacit admission Boeing had made the correct market call.
Not like there haven't been a ton of negative articles about the 787's problems, Boeing spent $25b on it and they really need to sort out the kinks and ramp up the production rate to make a proper return.
I flew an Emirates A380 a couple of years ago and it is a sweet, quiet ride.