In Halo’s defense, the games don’t really have room to explore the different subgroups of the various aliens. There’s a lot going on in the books and other EU material.
Also, most people don’t spend more time in space than necessary and fancier human ships wouldn’t contrast as strongly again the purple teardrop shaped Covenant designs or Brutalist Forerunner designs.
In Halo’s defense, the games don’t really have room to explore the different subgroups of the various aliens. There’s a lot going on in the books and other EU material.
Also, most people don’t spend more time in space than necessary and fancier human ships wouldn’t contrast as strongly again the purple teardrop shaped Covenant designs or Brutalist Forerunner designs.