Well, what you said is a bit reasonable. I don't know how to reply, but I still feel a bit wrong.
It is better that we eliminate all external factors and just discuss the characteristics of each dps (I am not familiar with physical melee dps, there are no examples, and other familiar people can add)
BLM: Poor mobility, without team assistance and resurrection, but in exchange for high firepower.
SMN: Good mobility, with team support and resurrection, but also high firepower, and the gap with BLM is small.
RDM: Poor mobility, with team assistance and resurrection, medium firepower.
Bard: Good mobility, team support, no resurrection, low firepower.
Dancer: good mobility, with team support and powerful single player support, middle and lower firepower
Machinist: Good mobility, no team assistance, mid-range firepower.
It is not difficult to see that the balance between various occupations is divided into many modules
Mobility, Firepower, Team Assistance, Revival, Manipulation, etc.
There will be a balance between these several. Although no one can achieve an absolute balance, it is clear that there are several occupations that highlight several problems.
The problems with Bard and SMN arise.
So I use these to suggest that the firepower or mobility of debuff SMN to maintain this relative balance can not allow SMN to monopolize many professional characteristics advantages.
Of course Bard needs to boost his firepower to make him similar to Dancer.
I think we can all look at the problem from these perspectives.