Setting "Generate In Villages" to 0 (or 0.0) in the config file causes villages to generate with an exess of roads and lamp posts.

"Generate in Villages"=0.0

Same seed & village with "Generate in Villages"=0.1

MC version 1.12.2
Forge version 14.23.0.2531

Mods in use:
Waystones 1.12.1 4.0.17
Optifine 1.12.2 HD U C6

...can this be a feature?

If it helps, I've noticed this odd village gen behavior when Recurrent Complex adds structures to villages. ATLCraft Candles Mod appears to add the candlemaker building to villages without issue.