The new update is great btw! As far as roads go, it's frustrating to sometimes have an awesome map and layout of cities, but the roads and sea routes kinda don't make sense - even a "regenerate" button for them would help.
I'll probably make something for sea routes, they are too arbitrary. Roads however are deterministic, not random (unlike most other subsystems in the generator) and I think they are fine. Unless you show me an example (permalink?) where they look wrong.
I was mostly referring to the sea routes tbh, I don't recall roads bothering me too much now that I think about it! Tested it a few times now and it's all good.