Theres one huge point that I think all of the "WoW is too ez modes now" groupies are missing.
One of the main reasons I hear people have quit is because "Theres too many dailies!" or "It takes too long to hit 90!". Bullshit. Compared to Cata, they really raised the bar on difficulty. Regardless if you think dailies are boring, or if there are just too many of them, the point is you actually have to put in the work to get the reward. Don't hide behind the facade of it's not hard enough when the truth is you just don't want to put in the effort, you want everything to be handed to you like it was in Cata. Look at the special quest mobs too, you can't just walk in there and kill them anymore, for some you need to actually pop CD's and avoid certain mechanics. You can't just fly from one spot to another and avoid any possible danger on the way there.
I'm so tired of people pinning the blame on blizzard when they just gave you exactly what you all asked for. It may not have been in the way you were all used to, but the fact is that the challenge is there, you've just gotten so used to shit being so ridiculously easy that you don't want to admit it.
As for the actual subs loss, yeah that's' a pretty big blow. But seriously, check out the gold buying sites, they're hurting. Ever since they started saying how the most subs lost were in the east I started keeping tabs on the gold buying prices after these conference calls and guess what? I've seen around a 15-30% increase in price from the start of the expansion up until now. 20k gold used to go for roughly about 15-20 bucks, it's now 35 bucks, and alot of the sites don't even have gold in stock on many of the servers. Despite what people may think about them using "the east" as an excuse, the proof is there. For the prices to go up that much, something must be cutting into their ability to farm the gold. Also remember that those 1.3 million subs are across several different regions. I haven't seen much of a difference on either of the 2 servers I play on, and neither on many of the other servers my friends play on. I would bet money that a vast majority of those subs came from gold buyers getting shut down and the severe burnout that they're probably feeling at this point with the double lockout shit.