While that's true, ANet isn't exactly a company that makes its first MMO with just very little alternatives out there.
Whether GW2 is good or has a problem or not isn't really an issue of developers, I think the strategic management of ANet is the determining factor here. I don't really think the ones actually making the game have a lot of influence. If you read the comments by former ANet employees you'd see that it's quite a hierarchic organization. Add in shareholders and NCSoft and see what we got. Some may like it, some are more or less disappointed.
Yeah when I look at the game GW2, I see a product that was very much optimized to attract release day sales. The game feels very much unfinished and its obvious that the majority of the attention near the end was given to the lower level content that people had access to in the betas. The product had received a ton of hype and media attention and Anet decided to cash in at the peak of that hype. Its unfortunate that releasing an unfinished game is perfectly acceptable in today's industry.
To answer the OP, you reap what you sow. Anet never identified a core audience for its product, or more likely abandoned the core audience they initially appealed to and tried to appeal to "everyone". Well they got their payday with that strategy, but they also got "everyone", and everyone actually consists of different groups of people that want very different things.
Anet is now simply living with the consequences of the decisions it made about this game. In fact the expectations from the gamers pretty much forced Anet to take a position and declare their go-foward strategy, which I think they very much were trying to avoid. Its kinda like a man dating two women. For a time he gets the best of both worlds, but when they get wind of one another it really hits the fan and he's gotta choose and hope he didn't lose them both.
this game has become a complete clusterfuk. Regardless of your stance on VP, there is now one thing to do in GW2 PVE, and thats fotm. And god help you if you took a week off because you're now totally screwed. This bullshit gated content will kill the game far faster than ascended gear ever would.