Not sure if anyone addressed this but I feel that walkways should be unlocked sooner. To me it seems odd to have it unlocked after logistics in my opinion, heck, it feels weird to have it unlock after being able to build constructing and mining components. I don't know if I'm the only one who feels this way but I feel that logically I would like to be able to build my housing/enclosure prior to being able to create my production because then I spend my time breaking down the logistics I had already spent hours building just so nothing is in the way. If I have my buildings and walkways constructed first then I can focus on my production and logistics. Like how a real factory is built.
I know one can argue by saying "Then don't build anything till you have what you need unlocked" but then it would take much longer to get to that point. I also know that there are many of us that also don't care much about building enclosures and that it's more of an aesthetic than anything else, In factorio I didn't bother laying concrete. Anyway that's just a suggestion I feel that needs to be addressed.