Then you’re correct. Even as a non-tank player the balancing in tanks is a mess. It’s not great for dps/support either but both of those roles aren’t powercrept at least.
My ideas:
D.Va: DM buffed to 14m (I hate her, but yes she isn’t great but NOT dumpster due to her ripping hitscan to pieces. Matrix is the fundamental part of her kit which hasn’t been good for a long time so hitscan took advantage of it. 15m was a little busted, so 14m will do the trick).
Wrecking Ball: Boop changes reverted (Boop is the main part of ball’s kit which blizzard nerfed. Giving it back is necessary for his viability but buffing other tanks will make this fair. I dislike ball too but they wrecked him)
Winston: Barrier Projector buffed to 875 hp & Health increased to 525. (Winston hasn’t been great for a while and he’s one of the most healthy heroes in Overwatch. Give our monke another shot!)
Orisa: Barrier CD decreased to 9 (this won’t bring Double Shield back, but it, along with the Winston buffs, will keep threatening rein’s pole main tank spot)
Should be kinda obvious that DoubleBarrier needs to be vulnerable at close range, and that heroes that aren’t offtanks are providing the close range peel for DoubleBarrier to be strong at close range.
Especially if we ever get back to a point where Rein barrier is roughly equivalent to Orisa and Sigma barrier.
DoubleBarrier will just be fundamentally better than SingleBarrier, unless DoubleBarrier has a close range vulnerability.
Tanks aren’t meant to be DPS. Tanks are actually doing to much damage causing them to explode with the added damage from DPS.
So yeah I say nerf tank damage and buff their survival/mitigation.
but my mind is done with OW1 balance, any balance now is just a bandage to OW2 and kind of pointless.
In theory, the thing that counters Double Shield is Dive, though the issue with Double Shield is self sustain which makes them not so vulnerable at close range.