Every job has a Skill/spell speed optimal cap that can vary with some factors (like personal playstyle or ping)

Besides this cap the meta will never be those stats, they are only to fulfill a certain GCD time, just like Stormblood.

I am curious about the guy who said he put a lot sks in his samurai and outperformed because as far as I know you can be out of TP pretty quickly depending on the fight. Unless you have goads and TP from a ranged in your group just for you, but in pugs, I wouldn`t count on people goating me.