The other support classes actually do not. Every class took utility nerfs to make room for dancer.
Bards utility has gone down dramatically. And is now far less raid dps wise then dancer or ninja.
Machinist is on stormblood monk levels of support. With just 1 survivability buff. And no other support.
Dragoon no longer has piercing debuff (although it’s personal dps is too strong for its raid dps, I’m sure it will be nerfed tho in some reguards)
I have no idea about RDM not that they contributed to farm runs, so they maybe only used for progression again I don’t know.
Dancer and ninja are the two highest raid dps classes

therefore their raid dps is lower. This is so it doesn’t become more effective to stack these classes instead of having a variety of classes present.
Dragoon I can understand
But how u believe machinist and bard offers the same raid dps gains as dancer or ninja is beyond me

u guys are litteral 10% raid wide damage increases.
The entire raids burst phases revolve around you. Your the most important dps there. There’s always a cost there