5 whole minutes just to show the ship is a lot, regardless of how long the rest of the movie is. They might have gotten away with it if the rest of the movie picked up the pace, but it doesn't. For comparison, Star Trek Beyond only took 45 seconds to show the entire sequence of the Enterprise A being built and flying off to warp (would have loved that scene to be longer). I'd be interested in checking how long Star Trek XI took to introduce the ship, but I'm far too lazy to do that.
Secondly, Adami wasn't just talking about that one sequence. Most of the movie takes place on the Enterprise, so you see the ship a lot, like long sequences of it slowing drifting into V'ger etc. It kills what was already a really slow pace.