This isn't about anthropomorphism, it's context engineering. By breaking things into more agents, you get more focused context windows.
I believe gas town has some review process built in, but my comment is more to address the idea that it's all slop.
As an aside, Opus 4.5 is the first model I used that most of the time doesn't produce much slop, in case you haven't tried it. Still produces some slop, but not much human required for building things (it's mostly higher level and architectural things they need guidance on).