The problem of this design is the secondary hull. The actual NX is closer to the rocket design of the Phoenix and the NX prototypes and thus emphasized design history better than a ship which would have already featured a secondary hull.
Furthermore the single biggest mistake of the show was that it wasn't rooted deeply enough in the 22nd century. A ship which looks like a 23rd century design would not have alleviated this problem.
Furthermore the single biggest mistake of the show was that it wasn't rooted deeply enough in the 22nd century. A ship which looks like a 23rd century design would not have alleviated this problem.