I see what the OP is talking about in these trailers.
Personally, I'm not worried.
Easing/blending animations is a near requirement of current & next gen games. Once the underlying core systems are tuned up and in place, they will add those finishing touches.
BTW Have you seen the trailer for MGS:Ground Zeros? Awesome gameplay animation in there. Snake's walking-to-crawling movement (@10:00) is just flawless.