No, the statement was made that Maida - although a British victory, was converted into a `strategic defeat`, which is nonsense, because a battle is a single tactical event within a series of other events, which may be a successful - or unsuccessful - campaign or war.
The outcome of a campaign may cancel out - or amplify - the results of a battle, but it does not alter the course of the battle itself.
N won several significant battles in Russia in 1812; his overall campaign was a total disaster, which cancelled out all the tactical advantages of his victorious battles, but they were victories within themselves nevertheless.