How absolutely terrifying that he imprisoned those villagers to be able to trade with them. Some kind of system where they need food, sleep, love and freedom to trade needs to be implemented before people create basically prisons or internment camps for villagers.
Hah, maybe make it so that they won't trade with you if they're too far from their village?
Lots of great stuff in that video. I love the change to enchanting. Always thought 50 was a bit too high of a max level, considering how much XP it took to reach it.
Also, looks like mining diamond and emerald blocks drops a tiny amount of XP now, from DocM's other 1.3 video.