It's just business. Creating new, albeit buggy, content is much more profitable than fixing bugs in the existing one. They won't fix bugs, obviously. Even if some of the players dissatisfied with the issues in the game leaves it, others will take their place. Because the game is very famous, it's a brand. They are not interested in the quality of the game, only in money. Therefore, nothing will change from your complaints. Just play another game and don't buy anything from their store. That's it.