It's just the first teaser. That's always the one that reveals the least about a film.
Come to think of it, that might be why there are no shots of Reed stretching. Maybe the CGI on that is taking longer than the other stuff. Initial teaser trailers tend to be light on action and FX scenes because they're released before all the FX are done. They also tend to focus mainly on the first act of a film so as not to give too much away about the story. After all, a teaser is itself a "first act" of the promotional sequence, since there are usually around three major trailers in a film campaign.
That's true, but I'm just giving my emotional reaction. Here is a film I was really looking forward to, and still am, and the teaser not only fails to impress but makes me actually less excited about seeing the movie. Let's hope the Superbowl spot is more impressive.
This is the opposite of the Superman trailer for me. That was a film that I was cautiously optimistic about and became my most watched trailer of the past few years.