It's sad that blizzard went with "remove tanks from pvp" mentality again, just after they made a promise to balance pvp and pve separately AND added pvp talents for tanks and stuff.
Tanks were already weak in pvp, speaking from guardian perspetive. I didn't provide more stuns/cc than average carry and couldn't solo people as well(self heals are really fucking strong in legion).
My main "strength" was AoE dps with was useless in BGs where people are spread out and "tankiness" with only helps dragging fights out when defending nodes(with I still could lose to SAPnCAP if my trinket was on cd).
Nerf them more, eh?