Yes and no.
There are both mistakes made on correlation and causation in both directions. Direct observation is on that is needed.
However, many if not all animals are adaptive and will learn. The error is in thinking they will not learn.
If they can pick up burning/smouldering twigs they will. They will then try many different things with them, perhaps even building their nests in error. Using them to hunt would be an additional step in the learning behaviour, but not an impossibility (see how many insects and crustaceans even use materials as lures/decoration to their habitat/body/hunting).