How would you tackle job identity?

[Taranok]

Warrior requires external mits to survive some tankbusters.

They did this in ARR. The class was so garbage that the very first patch ARR got specifically turned WAR into PLD. This is the first piece of homogenization the game actually got, and kicked off the largest source of homogenization the game has seen. That is, turning all tanks into paladin. The second piece happened in HW, when all healers were turned into white mage. This decision has had knock on effects that last all the way to this day.

[GoatOfWar]

They did this in ARR. The class was so garbage that the very first patch ARR got specifically turned WAR into PLD. This is the first piece of homogenization the game actually got, and kicked off the largest source of homogenization the game has seen. That is, turning all tanks into paladin. The second piece happened in HW, when all healers were turned into white mage. This decision has had knock on effects that last all the way to this day.

Then there will never be a job identity ever again.
If you don't want to have weaknesses then you can't have advantages.
Otherwise your job just becomes the best, like it is now.