I'd say the Pioneer's silhouette is plenty distinct from a Connie for identification purposes in fleet shot or action scene, and looking like it was kit bashed by merging Connie parts together is a feature not a bug to me, first cause it implies the two classes were essentially "made on the same tooling" which has grounded practical implications, and second it fits with the tradition with the Nebula, and Centaur also being shameless but still appealing kit bashes of thier respective larger stablemates.I guess I differ because the Pioneer looks way Too much like the Constitution whereas the Miranda is more identifiable
Miranda meanwhile I feel fits best with Shangri La as its stablemate even if it calls for a bit of revisionist history because even though they aren't straight kit bashes of each other they're both made to that TMP era semi-elegant semi-boxy aesthetic from the start, and the cutouts on Shangri La's saucer roughly lines up with the shape of Miranda's box hull its just to much of a coincidence to pass up.