An objection states that a transitive verb normally concerns an object; why should the analyst not silently restore an object whenever none is stated?
The response distinguishes lexical valency from communicative intention. An actual action may have participants, but the utterance need not specify or mentally restore all of them. A speaker may use «يعطي» to indicate generosity, «يعلم» to indicate knowledge, or «يرى» to indicate perception.
Thus the grammatical capacity of a verb to take an object does not by itself prove that a particular object has been deleted from the meaning of every such sentence.