This is something interesting I just noticed. This clip of the Tusken Raider attack appears to be a rip from the 2011 Blu-Ray. Then I heard the 2004 Dragon Krayt Obi Wan call.
http://www.starwars.com/video/tusken-raider-attack
I remember hearing about Star Wars being restored in 4K and that there were rumors that Disney was keeping some changes and taking others out. Perhaps this is evidence that that’s the case?