To be honest, I find it ridiculous how many people (not necessarily here) cry foul over one fucking screencap! I mean, come on, this is just one still image of several hours of material. And I bet even that one looks just fine in motion. I cannot grasp how anyone would cancel his order over this. Star Trek fans are a funny bunch sometimes.
I agree that a single screenshot and a trailer (hopefully) with temp effects isn't enough to justify cancelling a pre-order, that's absolutely ridiculous.
But there's no smoke without fire, the effects should at the very least measure up to what we've seen with season one, and from the little evidence we have been presented with so far, the conclusion people are drawing is that it doesn't.