Except that now gear can roll to be significantly stronger, which means it has to drop, roll higher than the standard version, and roll a socket preferably. That, and legendaries are very unbalanced, some are virtually useless, while others are so mandatory they should have been part of the class from the start.
That much is pretty much fact, how important it is to you is probably up to how you view the game. I don't mind legendaries as much since I'm not pushing mythic raids (Logistics, not a skill issue), and I'm more concerned about the general direction of warlocks. Small tweaks would go a long way to make them feel better though.