The duelist being dex focused (or at least requiring dex with light and medium armor) is a much needed change and stops players from auto defaulting to it for +AB. However, the perk was dealt too much of a nerf in my opinion with the removal of uncanny dodge. Since the focus of the perk is more on dexterity characters, getting uncanny dodge would be a major help to these lightly armored warriors. Otherwise duelists are going to be picking fighter/rogue instead to regain some of their previously lost bonuses.