From what we've heard about the amount of care for items in the the archives I actually doubt intentional damage.The original Luke Vaporator scene had deep camera scratches. At one point the sandstorm sequence was supposedly put in a dumpster.
There is no reason that these should be presented this way. Especially if this is their "Complete" set. If they can go back and waste money on finishing deleted Prequel scenes then I think they could have afforded a little cleanup on some deleted scenes. Oh wait, at Lucasfilm film cleaning and restoration costs 5000% more than everywhere else. It must have been too expensive.
It looks like this is only going to be a selection of scenes. Why couldn't they finally release everything together? Honestly, I think at some point they should release the original rough edit.