BLM brings no utility and is well balanced.
Just except the fact it's much more mobile than it ever was.

The problem is how jobs are designed and what they bring to the party:
-Personal Damage
-Party crit&DH
-Pure damage buffs
-Mitigation
-Shield
-Healing (pure&HoT)
-Other (Expedient/Rescue)

When a job has Party buffs, it's often balanced to not have big personal damage.
And the same applies to opposite, jobs with no party buffs have big personal damage.
The problem is that both Samurai and Machinist are lower than what they should output.

If SQEX adds rDPS, they will remove some of MCH personal DPS, that's balancing.
The problem is that MCH only brings damage to the party and nothing else. And even when it supposed to shine there, it's lower than what DNC and BRD can bring on top of extra utility.
Tactician is a role skill disguised as a job ability.