Do you really expect every reported bug to be fixed immediately? It’s more complex than that. Bugs can take time to determine a cause and more time to find a working solution that doesn’t create more problems than it solves.
Do you hold the same opinion for vanilla? Because we all know that the bugs in that version that survived there have now been incorporated into this version and has impact on how we play the game.
If you want better communication, maybe we should first consider how well we communicate with them ourselves.
Edit: anyone remember this lovely gem from vanilla? 
https://www.engadget.com/2012-11-16-wow-archivist-how-forum-trolls-broke-a-cm.html