Yes flavor cans from aroma nose. They say the tongue smells mostly. So, defiantly don't bitterness.
For the rest of the forum, I'll translate that back into legible english.
A large percentage of what we perceive as flavor comes from aroma, so to some extent dry-hopping contributes to flavor. However, at a technical level, dry-hopping mostly adds aroma and little/no flavor or bitterness.
im doing a amber ale i did it with dry hopping but i think it lacks some hop flavor so i will have to try again with late hop addition and compare the batches