Not ideal, but still better than anything came after WoD.
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Only dd specs should be allowed to que for 1vs1 solo arena.
And regarding RGBs, i think this abomination should just be removed, and replaced to a better reward structure in random bgs along with personal rating, class pvp quests and more kill acms. Again, tbc and wod did an excellent job in that, just wod was too focused on ashran.
Mythic+ needs to be reduced to cosmetic rewards like it was done with the challenge mode dungeons in MoP...there i said it, without that gear source, there would be more incentive to do pvp and even other relevant pve content like raids.