head to head
Path of Exile asks more than Final Fantasy Tactics, and the gap is variance.

Optimization · Pure Optimization
A deep optimization puzzle solved through job combinations and CT-manipulation on fixed maps.

Optimization · Pure Optimization
A theorycraft-dense ARPG about engineering builds through randomised loot and crafting.
Final Fantasy Tactics leans Optimization (Pure Optimization); Path of Exile leans Optimization (Pure Optimization).
Path of Exile leans a little harder on execution, though the gap is small.
Final Fantasy Tactics
No twitch; CT-tick positioning demands spatial planning only
Path of Exile
Some dodge and reflex play, but build carries fights.
Final Fantasy Tactics leans a little harder on reads, though the gap is small.
Final Fantasy Tactics
CPU job/action selection is fixed and fully predictable
Path of Exile
Mobs and bosses are scripted; no adaptation.
Path of Exile leans clearly harder on variance.
Final Fantasy Tactics
Random drops and some proc rates exist but rarely swing outcomes
Path of Exile
Loot, map mods, and crafting outcomes are heavily random.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Final Fantasy Tactics
Job mastery, ability stacking, and CT manipulation are near-perfectly solvable
Path of Exile
Passive tree, crafting, and economy form near-infinite theorycraft.
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.