I don't think people realise how much potency jobs gain through the levels, I pulled this snippet from one of my old posts and shows how the AoE damage of PLD changes through the levels (P/G = Potency per GCD)

Level 15 (all TE) 100 P/G
Level 40 (TE > Prom x5) 135 P/G
Level 72 (TE > Prom > MCx5 > TEx2+Prom) 214 P/G
Level 80 (TE > Prom > MCx4 > Con > TEx2 + Prom) 274 P/G
Level 90 (As detailed above) 405 P/G on main enemy 316 P/G on the remaining (only part where there is damage falloff)

Remember, this is PLD and the damage quadruples for the main target and a little more than triples on the remaining, dps are going to scale more heavily and do much more damage.

While you could theoretically balance the potencies for every dungeon, is it really worth the vast amount of dev time it would take?

Quote Originally Posted by RaijinThunder View Post
The way the syncing works for fates should be the same for dungeons.
FATE syncing works the same for both FATEs and dungeons as an FYI.