We definitely need a Puppetmaster Job in this game!

[Aegis]

You're not recognizing the difference between "let's 4 man leviathan with SCHs and SMNs for shits and giggles" and "Running Ramuh EX. No tanks. Let's ignore the current content's mechanics because not having a tank and using a pet that the boss cannot kill makes the fight a lot easier".

Novelty comps are okay. The novelty goes away when those become the norm and people get excluded as a result. Big difference.

So if SCH/SMN comps become the norm and people get excluded they should be balanced out? Where do you draw the line?

There's no real difference between the statement
"let's 4 man leviathan with SCHs and SMNs"
and
"Running Levi Ex. SCH/SMN only. No Tanks"

We ignore content mechanics all the time. We pushed DPS through Demon Wall to avoid the bugs, We timed out and healed through Turn 2 to avoid having to pass rot, we LoS in Turn 7.