Well, just saying "wrong" doesn't help anything.
There is no "linking" going on between the library and inventory. The only "linking" is between the library and quickbar, but that has been in since 0.17.0 and is not a new concept.
Think of the new library as a regular inventory that can only hold blueprints. It behaves exactly like any other inventory. If you can get that down, then all of the interactions will make a lot more sense.