Flat-leaf herbs are more than decoration
The idea
An herb can change a meal even when its quantity looks small. Chopped leaves distribute their aroma through a mixture, while larger leaves let you notice the herb as a separate part of the bite. Garnishing and seasoning are therefore related jobs, but not exactly the same one.
A practical next step
Compare a spoonful with chopped herbs to one with a whole leaf on top. Keep the other ingredients the same.