When did Star Trek fans get all prudish??? Classic Trek was known for the outfits the women wore (or didn't)
For me, the problem with that shot in the trailer is that it doesn't fit with the rest - it's all action shots, high energy, lots of movement, and then *bam* it's practically a freeze-frame of Eve, then back to action. If the shot of Eve had more movement rather than just the awkward pose, it wouldn't be as jarring.
This is a reasonable objection to the shot in the trailer--focusing on why it seems "out of sync" with the rest of the material, how it interferes with the dynamic flow and so on. (I don't necessarily agree, but it's a defensible critique.)
To argue, as others have, that it is somehow excessively sexist, is, frankly, absurd.