A lot of it is very saddening, but I think this one takes the cake.
* Most NPCs will not have a complete set of dialogue, with only "important" characters having substantial dialogue.
This is TES, not Fallout. One of the last redeeming qualities of TES was that it kept the oldschool appeal, the fact that what originally made RPGs different from other games was the fact that the NPCs in the game were real, and had lives, and conversations. I hate the fact that in the new Fallout games we get "a towns person" and they have one line of dialogue.
I do not want my games to have 15 NPCs with maybe 10 minutes of dialogue that is Voice acted by expensive voice actors with the other x randomly generated number of NPCs being one liners. It should be a ton of NPCs, with text, lots of it. Morrowind did it right.
Ugh, this is definitely becoming a rant, it just saddens me to see TES so readily throw off the mantle of depth.