I disagree. If you watch the trailer its has a more horror feel, slower paced and much more intense. The visuals were absolutely astounding and had an organic feel. I thought the same thing upon first watching the trailer, but then I went back and realized what they were trying to accomplish. I think Gears 4 is going to rock!
The general consensus on Gears 4 was that it had a bad showing. It was two characters walking around the dark for 80% of the presentation until they get surprised by some generic monsters. It was certainly going for a more horror feel, but the team working on it couldn't deliver. You can hang your hat on a few things. The Gears 4 presentation isn't one of them.