Ninja, The problem job and some ideas to change it.

[Maero]

While Ninja surely is on the lower end of damage (lowest of the melee) Red Mage IS actually the lowest dps in the game and bring utility hardly worth mentioning outside of progression.
Utility is about the only real reason Ninja is always accepted into groups because it is that good (TA + Smokescreen and Shadewalker), if it did not have that it would be harder for it to be accepted into groups i would think.
I can say however that i have had on several occasions were mudras would not register or like Shurrikhan said you get something other then what you wanted, so mudra issues are still a thing.

At the end i actually find Ninja frustrating many times tbh while doing Savage, lol
I would rather go back to being a caster but this is only because this is the first time i have done Savage content as a mellee