As someone who has done some work in coding I can safely say that what Maim Lain has been doing is not easy at all. To put it into perspective the base game itself has probably thousands if hundreds of thousands lines of code that allow the game to play the way it does and chances are that this very mod could easily have hundreds if not maybe even thousands lines of code just so the fans of this game can have a helpful guide on what to do for each of the characters in the game, did he/she need to do this HELL NO Maim Lain CHOSE to make this mod, they CHOSE to take the time to spend many long hours to craft this mod for us to enjoy. I can understand why it wasn't easily to try and get the walkthrough mod to work because this wan't just an update on a single character this was one that moved the main plot of the game forward, and I'll be honest I was sad when this mod updated and the walkthrough part was gone, but when I read the reason why I became very understanding of the reason. I can also Feel for why Maim Lain is currently NOT PLANNING on adding it back in when the game is more stable because quite simply would you want after seeing that while you are trying to update the mod you have a bunch of people repeatedly asking when the mod will be up and then after having spent what was no doubt many hours trying to get it to work and not succeeding you see people giving negative reviews and posting their complaints at the fact that the walkthrough wasn't there.
To Maim Lain if you read this you are an ANGEL and a GODSEND and I'm very deeply thankful as well as grateful that you took the time to make this mod for us ungrateful peasants and if you do ever update this mod again it would be more than we deserve.
To those that have been upset and disappointed with the update I say you are a ungrateful bunch of people because you are upset that there is no walkthrough (among other things I looking at you MR. 4 paragraphs of disappointment) and here is a little fact for you when I first found this mod the walkthrough was a demo and only those on Patreon got the full version it was later that it changed to being a full walkthrough here.