head to head
Factorio asks more than Baba Is You, and the gap is execution.

Optimization · Pure Optimization
A rule-rewriting puzzle game that is pure deterministic problem solving.

Optimization · Pure Optimization
A factory-engineering sandbox about scaling throughput against your own bottlenecks.
Baba Is You leans Optimization (Pure Optimization); Factorio leans Optimization (Pure Optimization).
Factorio leans clearly harder on execution.
Baba Is You
No reflex or input precision involved.
Factorio
Some APM in early hand-crafting; otherwise irrelevant.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Baba Is You
No opponent; puzzles are static.
Factorio
Biters follow fixed pollution rules; no adaptive opponent.
Factorio leans a little harder on variance, though the gap is small.
Baba Is You
Puzzles fully deterministic with no hidden information.
Factorio
Resource patch placement adds minor map randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Baba Is You
Literally solvable — find the rule rewrite that wins.
Factorio
Throughput, ratios, and logistics are the entire game.
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.