That Vader clip is pretty great. However I think it sounds odd because of the way it's written. Vader doesn't talk in long run on sentences "..if you find them train them" etc. He's talking abit fast also. I think it comes down to how the performance by JEJ was directed. Vader talks in a slow and methodical way which doesn't come across here.

In the latest episode did anyone catch Anthony Daniels in a cameo as the guy who tells them to find Luminara? Also the character who tells the crew to find her looks like Daniels.