Its really impossible for GW2 to be worst than it was before, since there wasn't any substatial gameplay changes (Like Runescape Evolution of Combat). Since release we only got newer things, expansions and QoL updates, so its kinda impossible for today, after everything we've got be worse than the early days of GW2.
Now if you're talking about Balance alone, yea, sure, its a mess. But its doable. It happens in all MMOs.
Just dont misjudge balance issue with gameplay or QoL issues. GW2 is getting better and better gameplay wise, and the more the game grows, the bigger the balance issues will be, but thats pretty much it