The book lists additional weights that convey an intensive or habitual agent meaning. These do not make every agent automatically 'intensive'; the attested word and its context matter.
PatternExampleSense
فَعِلٌحَذِرٌVery cautious
فَعُولٌضَرُوبٌHabitually striking
فَعِيلٌعَلِيمٌExceptionally knowing
فَعَّالٌقَطَّاعٌFrequent cutter
فَعَّالٌأَكَّالٌVoracious eater
A standard active participle identifies an agent, while these examples can add intensity or habitual practice.