Best reason I can give you is because based on their own poll PvP in DF (by far RSS) is the 2nd most popular and loved aspect of the game…
https://us.forums.blizzard.com/en/wow/t/poll-what-is-your-favorite-game-mode-in-wow/1582682
I mean you have to be nuts to not fix it but yeah Blizzard’s finest 