If every item in your container could be easily translated or rotated in relation, it would be awesome. They're still picked individually though.
So if I were to make a big boss for example with lots of guns. I would make a family out of his body parts so that I could destroy each gun as the player hits it.
Also make the events cleaner than containers because you only have to move the family, not every single body part individually.
What I'm trying to say is, I don't really see what this brings to the table that couldn't be done before.