I have never seen such a whiny community that actually complains they have to actually play the game.
Every single MMO I've ever played, has this vocal minority kvetching on forums, reddit, metacritic, etc. It's nothing new, nor warrants much attention. Sure there are valid complaints, but the subset of people who express those complaints as whiny Yelp-style reviews, banging their fists on the table, demanding the devs fix it naow, don't give out enough respect to warrant their opinions being respected.
WoW's (small, vocal) whiny community almost made me hate the game for having such a community, even though it's not the game's fault. It took me a while to figure out the proper way to handle the situation, but it helps to remember that 1000 people bitching on a forum, don't represent the opinion of the 10+ million people who play.
Excessively or perpetually negative people are boring, and tiring, and the internet gives them too much attention so they get into the habit of thinking that negative opinions = truth. And nobody better dare say their special snowflake opinion is wrong or invalid, because they have "valid complaints!", even if they're expressing it like a four year old during a tantrum.
To be fair, it's usually the *same* bunch of people who complain, from launch till the day they finally move on. So that loud, vocal, but ultimately pointless and meaningless negative lump you find attached to any game, seems to be an unfortunate byproduct of giving everyone a platform from which to scream. I'm okay with people doing their thing, if they want to be negative, complain, call the devs lazy, etc. But I dislike it when that attitude becomes cancerous and virulent. But I digress.
tl;dr; Whiners gonna whine, regardless of how valid a complaint they have. If it's a valid complaint, it's likely common knowledge already, so the whiners are just adding superfluous noise so they can feel heard, and share some of their pain at not having the fun they think they deserve. Can be ignored.
What's with the super low user metacritic?
If there is a system, people will abuse it. Metacritic, Steam and amazon user review scores have always been at the whim of an entitled community that loves to dogpile and abuse any system. Sometimes its funny schadenfreude, when it's a game "everyone" has issue with, and sometimes it's just dumb children (and man-children) doing dumb things, thinking they're being clever. It can be safely ignored too, I feel.
Verdant brink has already been empty on many occasions so far which isnt good.
If you find your VB kinda empty, zone out and in again, and it'll (usually) put you in a more populated instance.