The problem is twofold.....first, we can't truly tell people how different the gameplay is or isn't based off gameplay videos. So far the hands on people seem to say the playability has improved and it's an overall better gameplay experience.....and that isn't something we can tell from internet videos.That's generally what I try and tell people when I've posted some of these videos and given my thoughts. I feel like the whole story idea could have waited until the next iteration if the gameplay remains largely the same.
Obviously have to take into consideration it was built off the first game and might not see dramatic changes until it's on that new game engine they were said to be working on.
Second, and this is the bigger thing, i truly feel that BigAnt believe the gameplay is fine. So for them, story modes and presentation can rightly take the forefront, because in their eyes, the gameplay is fine. I think that if this game has the same reception as the first one, THEN maybe they will start to see a need to overhaul the gameplay.