I guarantee that if this ship, shot properly, had been in the teaser, not one single chuckle would have been heard. In fact, I guarantee the theater would've been filled with the sound of startled wonder and not a few gasps of pleased astonishment. The "unwashed masses" wouldn't know the difference between Vektor's design and the teaser version, and the Trek fans would've shed a tear or two at how good she stands up on the grand scale with very little relative change.
Well, to be honest, I don't agree. If you're going to redesign stuff, you'd better go for it 100% than do some half-way job.