I can't see how anyone thinks the original Vengeance bridge concepts are "cool." I mean, sure, if you think the Imperial Throne Room was cool too. I can almost hear Khan now: "Your fleet is lost. Your friends on the sentry moon will not survive."
If it'd turned out that way, the number of people screaming Star Wars would have been deafening.
No more deafening than the "J.J. Abrams raped my childhood" crowd.
There's a difference between it possibly having the same spirit/execution as Star Wars, and it actually LOOKING EXACTLY LIKE Star Wars. For the record, I don't subscribe to the former. But you'd be hard-pressed to ignore the latter if the above concept art had come to fruition.