The problem is overlapping pve and pvp reward systems. Pve reward systems in today's wow constitute nothing short of a meticulously calculated and designed casino that shamelessly aims to cyclically retain and occupy players for very specific periods of time. In order to facilitate the casino, pvp reward systems had to go away, and they did. Blizzard has even openly talked about this to my shock.
To make matters worse, Blizzard is not above deceiving us to placate us. We have a "conquest" pvp reward system right now in bfa. Basically I would hold your excitement for "conquest points" in shadowlands.