Hell NO!...we shouldn't have an easier time fitting books and other items into shelves and onto table tops etc.
Part of the fun of Oblivion's item arrangement was how painstaking a process it was and how tricky it was to do well. For me, personally, there was always a sense of satisfaction to be had after hours of item placement; rolling bottles along walls to get them into an upright position; tilting books along the edges of chairs and tables so I could line them up for a precise placement into a tiny gap on the shelf.
Sorry, I know a lot of you will disagree, but as much as I hated Oblivion's system...I loved it even more.
One thing I would suggest though, is that they make the items more stable once they're in place.
Oh and just a tip to anyone who still plays Oblivion and hasn't figured out how to delicately and accurately insert books into lower shelves:
-the books will move smoother into the lower shelves the further away you are from the bookcase when you try to put the item in. So it's best to use a telekinesis spell for putting items on those lower shelves.