Idk why people are asking for WAR nerfs. I think the unkillable tank that can heal themselves is good niche for tank. And WAR isn't the strongest rn so nerfing them will likely lower the popularity.

And yeah, SE is very much against nerfs unless it's ShB SMN, look how that turned out.

Nerfing a job just so other jobs can keep up is a line they don't want to tread on unless they deem it necessary, lest they want backlash if said nerf goes too far. It's just easier to buff everything else.

And NM raids tend to be super generous on dmg so no surprise there. SE is deathly afraid to make non-high end content hard because there's just too many players that can't be bothered to dodge an AoE or play ice mage.

The bigger the playerbase gets, the less willing the dev team is willing to make things harder. Past harder content like extreme and savage, you won't see fights that are "hard".