Well to be fair, NWN 2's REAL ending was Mask of the Betrayer's... which was a great ending I felt.
I loved Mask of the Betrayer's ending. Reminded me of the ending of BG2: Throne of Bhaal.
KotOR2 and NWN2 at least had endings that said what happened to places you visited and people you met as a result of your actions. Like FO1 and 2, and unlike FO3.
I didn't mind KotOR II or NWN2's endings, sure they were obviously rushed, but at least they had the recap like you mention. FO3 didn't which left a sour note. Why do developers neglect endings? If I had one good thing to say about the JRPG genre it's that they know how to treat you to a great ending.