Why does everyone use PF as a representation of the game?

[SeiyaSoiya]

They nerfed p8s for a reason, its because jobs were underperforming to the point they were hard locked out.

I have been told for the last 6 weeks by seemingly people who cleared that there can never ever ever be balance issues if a single team of players managed to clear the fight on week 1 using nay particular job no matter how undertuned it is.