Just so you know, they didn't actually manage to put everything in the last episode. They kind of messed up the pacing, so ended up with too much material for the last two episodes, and decided to have a recap for half of ep 11 (WHY?!), and then part of ep 11 content was shifted into ep 12 e a good chunk of ep 12's original content was cut. This should explain why there is the feeling that something is missing.
It's currently unknown whether they plan to adjust this in the blu-ray edition or if it will be left unchanged, though.