Not at all, they aren't just quirks to me. They are the things that I love most about games like these. I want to feel like I accomplished things when I complete quests. I want the NPCs to recognize my character. I play this game for immersion and everything I listed just crushes the immersion. This is not to mention that there isn't a single quest in this game that I have played that really made me go "wow". In every other Bethesda game I've played, atleast a few quests were just so damn good I wanted to play them over and over. And while there are great things about this game those gripes just take away from those things.
I completely agree with you. When you play for immersion (as I do) rather than just hack-n-slash, the NPC reactions are extremely important to the over-all feel of the game. When your accomplishments are ignored and, even more than that, you're treated like a do-nothing, no-talent nobody, even after accomplishing glorious deeds, it breaks the story and kicks you out of the immersion you had hoped to experience.
Bethesda story writers have a big problem in the immersion area. Why is it important? Because their games are advertised as
BEING immersive, it's what they're selling and, as a result, what the player (at least this player) expects to get. When crucial after-quest updates are ignored, it totally wrecks the validity of the entire world, throwing the player out of the immersion Bethesda promised to give them.
Oblivion had the same problem. Even though I played it many times over, and loved it and all its expansions, I always quit after I finally finished the main quest, because the finish was such a let-down it actually left me depressed.