But that's the point I'm trying to make - Over my career, I have inherited bad code in both styles - "prefer objects" and "prefer functions". In my experience,

But that's the point I'm trying to make - Over my career, I have inherited bad code in both styles - "prefer objects" and "prefer functions". In my experience, bad objects tend to be a nightmare. Bad free functions tend to just be a bit annoying. There are only two ways in which code review can keep your codebase clean in this situation: Stop doing any other development until it's all nice, or invent time travel.