We just had a photoshoot and when I added the photos into the library it combined a lot, which based on how it works makes sense however I would rather it not combine them because I had to use windows photo viewer to actually flip through and view each image easily, I would have rather used photostructure.
Perhaps there could be a switch which turns off duplicate combining or even to enable/disables certain rules to make it combine exactly how you want. Or perhaps a switch which in the UI splits all the files so you can look at them all for one option and combines them back all together as per the de-dup rules for the other option.