🌻 Counterfactuals are part of the meaning of causation but are not necessarily part of how we know about it
We can learn about causal powers via constructing or observing pseudo-counterfactuals, but also via other routes.
Maybe counterfactual arguments logically follow from facts about causal powers. But the meaning of "X caused Y" can't be reduced to a counterfactual statement about co-occurrences.
"X caused Y" maybe implies something about a counterfactual: broadly speaking, that Y would not have happened if X had not happened and everything else had stayed exactly the same. (Philosophers love to argue over the details.)
But the meaning of "X caused Y" can't be reduced to a statistical, counterfactual statement about co-occurrences. It says that the co-occurrences are true but they happen because X has the power to cause Y, and X happened.