There are certainly
some folks here ready to fellate J.J. Abrams for a film largely unseen. I daresay they outnumber those on the opposite end of the spectrum too. It's reasonable to form opinions about a film based on a trailer, that's what they're there for, however I notice that statements of opinion that extend beyond that which can strictly be justified by the footage presented to date are only challenged if they're negative.
The forum is becoming hostile territory for those who don't like what they see, which may be a largely inevitable evolution but remains unfortunate for all that, rabid naysayers usually being the most entertaining of posters, or at least provoking the most entertaining discussions.
I doubt there's much to the scene (in terms of factors that would affect its plausibility) that we haven't already seen. Certainly I doubt that the film will offer an explicit explanation for Kirk and co. being able to breathe out there, although explanations can certainly be imagined as they have been in this thread.
Fundamentally I think it comes down to whether one cares about the issue or not. In my case, not really. If they were fighting in orbit without suits then I
would raise an eyebrow. One circumstance requires a greater suspension of disbelief than the other. It's a very subjective issue, and as such seems a reasonable topic for discussion.
