Can no longer overwrite sound files by replace them in the WoW retail folder under Sound\Spells\
Blizz forgets that most of the success of this game is also due to the ADDONS that make life easier for players and that very positively customize the look and playability of this game.
In this very particular Patch 8.2, instead of thinking about improving the graphics of the game, and significantly reducing the space that the same already occupies in the HD, decided to modify the sounds of the game and system modifications that have become lousy and uncomfortable for the players and as if that were not enough players are left to improve or customize them with options to change the game interface or through addons.
I suggest that you correct the sounds of the game as they were before so the gameplay experience is much better than Blizz gave us in this 8.2 patch which is quite uncomfortable.