Automatic Job Balance System

[EaMett]

This solution also ignores that there are multiple skill tiers. Balance/unbalance from a meta perspective is mostly related to highly optimized play (what the jobs can potentially do) and not based around whether they are balanced in lower tiers of skill. It's much more complicated than just pulling numbers and automatically adjusting potencies.
For example, there might be a class mechanic that higher tiers of skill use 70% more often than lower tiers. Making any change to this mechanic to balance lower tiers will skew higher tiers. The real issue is that most skills are like this so you can't just balance a class by upping numbers randomly, you need a real method.

Want to boost dps for lower tiers of skill? If they have some dot or debuff you might consider increasing the duration of the debuff so that less skilled players are less likely to let it drop, and higher tiers don't get anything out of it other than quality of life (aka SMN changes in 5.08 for example). And that's one of many examples that don't involve potencies or straightforward buffs/nerfs.

This also doesn't take into account encounter design where some classes may underperform because of boss mechanics and not actual numbers.

All that to say that you need a humain brain behind it for the most part.