I feel differently about this topic everytime I re-read it lol

I don't think that on-GCD Shield/Sword oath is that big of a deal, not even the MP cost. If you take away one or both of these it trivializes much of the "Risk/Reward" style gameplay that, if nothing else, at least adds a layer of depth to the raiding scene. I also don't think PLD is in such a bad spot as to warrant this kind of request, they are super defensive already and as mainly an OT now they never need to be in Shield anyways. It's mainly a QoL request to help when shit hits the fan.

DRK is a bit different because they lack in mitigation compared to the other tanks. Off-GCD/no MP cost Grit should be in consideration here along with other changes. Additionally DRK relies much more on MP, needing it for both offensive and defensive abilities, something not mimicked on PLD. Grit should not cost 3x as much MP as Shield or Sword Oath activation (though I understand MP generation rates are different)

As for War, it's fine, just stop touching it SE.

None of these opinions are set in stone, though. If all the tank stances where suddenly changed I doubt I would even notice. "Oh there's a new rotation?" That's about it lol