They talked about how the AI works in a couple and how it was a big improvement over Oblivion such as they now hunt for you in the dark when you kill their friends and what not.
They mentioned an NPC going "I thought I heard something..." after a buddy they were just talking to got an arrow put through them, before running after the player.
Then we heard about how your character actually picks flowers, meaning that it will actually pick ingredients for alchemy instead of just hearing the sound and it's in your inventory.
I think you're reading a bit far into that comment. It would be nice if your character is animated to actually take stuff from the world, but I did not get the impression he meant it that literally in the article.
We heard about how there is life in the waters this time as the fish were spawning upstream, jumping out of the water.
Pretty sure we've heard about that before.
We found out that draugrs use Thu'um in the game.
We've been told before that there are others that use Thu'um.
We found out there is a chain lightning spell, a mind destruction spell, a ray of frost spell and there were more but I can't remember.
Except for the chain lightning spell, this isn't anything beyond what's already been mentioned or had in Oblivion (the skill screen pic mentions an Ice Spike spell and the "mind destruction" spell sounds an awful lot like Frenzy).
Ultimately, yes, there were a couple new minor details, some confirmation on that which we already knew/speculated, and the two or three new pics were very nice, but hardly the amount of new information I was made to expect.